Ophthalmology Center Research Articles

Bilateral penetrating corneal transplantation in a patient with keratoconus and Stormorken Syndrome: a clinical case

Introduction. Keratoconus is a progressive corneal disease that results in thinning, curvature change, and refractive alterations, significantly impairing. visual acuity, even to the point of light perception. In advance stages, corneal transplantation may be necessary. Purpose. This publication aims to analyze a clinical case of corneal transplantation in a patient with keratoconus and Stormorken Syndrome, a rare genetic disorder caused by mutations in the STIM1 gene leading to calcium channelopathies. Case description. Patient Z., a 24-year-old male diagnosed with Stormorken Syndrome in childhood, was referred to the Moscow City Ophthalmological Centre. Comprehensive evaluations, including biomicroscopy, keratopachimetry, and ultrasound eye examination, confirmed keratoconus in both eyes. The patient underwent bilaterial penetrating keratoplasty due to disease progression. Postoperatively, visual acuity was 0.8 in the right eye, and 0.7 in the left eye. Additional clinical observations including bilateral myositis (resistant to medication), hypoinflammation, thrombocytopenia, dyslexia, and proximal muscles weakness, of the consistent with Stormorken Syndrome. Genetical testing confirmed a pathogenic STMI1 mutation. Conclusion. Despite the high volume of keratoplasty procedures at our clinic, this case is noteworthy. The currrent literature lacks reports on penetrating keratoplasty using native donor material in patients with Stormorken Syndrome, highlighting the uniqueness of this case.

Evaluation of refractive surgery with posterior chamber intraocular lenses in patients with high myopia treated in an Ophthalmologic Center of the city of Rosario, years 2019-2022

Introduction: Myopia is an ametropia that is highly prevalent and causes loss of visual acuity, characterized by having diopters greater than -5.00. The implantation of a posterior chamber intraocular lens represents a treatment option for those patients who cannot undergo the Excimer Laser technique.Objective: To describe the results achieved with the placement of posterior chamber intraocular lenses in patients with high myopia treated in an ophthalmologic center in the city of Rosario between the years of 2019-2022.Materials and Methods: Quantitative, descriptive, observational, retrospective, retrospective, cross-sectional, non-probabilistic study by convenience. Conducted at Centro Oftalmología Global, a private center specialized in ocular pathologies, located at Bv. Oroño 1003 in the city of Rosario - Santa Fe. Data were collected by review of medical records. The data obtained were entered into a Microsoft Excel database. The data were tabulated for presentation and analysis. Summary measures of central tendency (arithmetic mean, median and mode) and dispersion (standard deviation) and descriptive statistical techniques (frequency distributions, averages and percentages) were used.Results: A total of 38 medical records were studied, of which n=23 (60.5%) were female and n=15 (39.5%) were male. The mean age was 31.2 (SD ±2.84 years; min. 24 and max. 35). The age group with the highest frequency was 30 and 35 with 25 patients (65.8%). Of the total, n=21 (55.3%) were patients with high myopia and n=17 (45.7%) with high myopia and astigmatism. Of n=38, 44.7% presented preoperative visual acuity less than 1/10 and 26.3% of 1/10. Refractometry showed results between -3.00 to -20.00 diopters of sphere and -1.00 to -6.00 diopters of cylinder.Conclusion: It was possible to assess that 86.8% of the patients who underwent refractive surgery were able to achieve an optimal visual quality (10/10) after LCI placement, and of the total number of patients (n=38) studied, only 5 (13.2%) presented complications in the postoperative period

Characteristics and Demographic Features of Vitamin A Deficiency in Sudan during War, 2023-2024

Background: A deficiency is a public health issue for many children and adults. In wartime hardship, patients eat little meat, dark vegetables, and fruits, which can cause vitamin A deficiency and corneal dryness, erosion, ulceration, and perforation. The purpose of this study was to identify the characteristics and demographics of vitamin A insufficiency in Sudan during the 2023-2024 war. Methodology: This prospective descriptive study was carried out between June 15, 2024, and August 15, 2024, at Dr. Khalil's Ophthalmology Center in North Kordofan, Sudan. The study looked at 100 individuals who presented at the clinic complaining of deficient night vision (including full coverage during the notification period). Results: In this study, only six patients had corneal opacity, with 67% being males and 33% females. In terms of Bitto's spots, 12% are present, with males and females having 58% and 42%, respectively, and 46% having dry eyes. 52% were males and 48% were females in terms of retinal pigmentation. Only one female patient exhibited peripheral retinal pigmentation, which was due to retinitis pigmentosa; all patients had inadequate food intake; and no diarrhea was reported. Conclusion: In Sudan, the rise in vitamin deficiency can be attributed to the inadequate development of all health system programs. Additionally, the devastating war, which primarily affects young people, has forced most people to leave their homes and become either displaced or refugees. Consequently, 69% of the patients were 17 years old or younger.

Epidemiology of Common Eye Diseases in North Kordofan, Sudan

Introduction: Eye illness epidemiology is critical because it identifies the most dangerous diseases in the community and helps decision-makers make better management decisions. This study aims to explore the epidemiology of prevalent eye diseases in north Kordofan State. Methodology: This retrospective descriptive study was conducted at El-Obeid Teaching Hospital's Ophthalmology Department, North Kordofan State, Sudan, and Dr. Khalil's Ophthalmology Center. Out of almost 50000 patient files, we selected 1000 files for this study using a random systemic selection of 1 in 50. The data collection sheet was created, and all data were collected. Results: The corneal diseases made up 19.6% of the 1000 cases in this study, followed by conjunctival 17.7%, lens 15.3%, eye surface 9.8%, uveal tract 9.1%, refractive errors 6.4%, eye lids 5.4%, orbital 5.4%, glaucoma 4.3%, retinopathy 4.6%, anterior chamber diseases 2.1%, lacrimal drainage system disorders 1.8%, and nerve palsies 0.5%. Conclusion: The western Sudan is heavily affected by eye diseases, with corneal diseases being the most common, closely followed by conjunctival diseases. This report delves into the eye disease situation in western Sudan. With absence of such literature from Sudan, the findings of this study presenting baseline of future research in this context.

Quality of Life after Cataract Surgery.

Background: The impact of medical intervention on a patient's quality of life (QoL) is more and more important. Treatment success is defined not only in terms of the success of the procedure performed but also with regard to its impact on different areas of the patient's life. The aim of the study was to assess the QoL of patients after cataract surgery and identify factors that affect it. Methods: Between January and March 2018, a survey was carried out among 100 patients who had undergone cataract surgery with intraocular lens implantation at the 'Spektrum' Clinical Ophthalmology Centre in Wrocław. The World Health Organization Quality of Life-BREF (WHOQOL-BREF) questionnaire and Illness Acceptance Scale (AIS) were used. Results: Most respondents (67%) rated their overall health as very good. The median score on the AIS was 34 (31.5-39), indicating a high level of illness acceptance. There was no statistically significant relationship (p > 0.05) between sex and QoL nor between the level of illness acceptance and QoL. We found no statistically significant relationships between place of residence and QoL (p > 0.05) nor between place of residence and AIS. Conclusions: The respondents reported the highest QoL scores for the environment domain and the lowest QoL scores for the social relationships domain. QoL had a positive impact on illness acceptance among the study patients. Younger patients (aged 50 or under) reported significantly higher scores for all the domains of QoL. Being employed was found to be associated with better QoL and greater illness acceptance.

Agreement between intraoperative and anterior segment optical coherence tomography measurements of the extraocular muscle insertion distance in patients with previous strabismus surgery

PurposeTo evaluate the agreement between anterior segment optical coherence tomography (AS-OCT) measurement of preoperative distance from the limbus to the horizontal rectus muscles insertion and intraoperative measurement in patients who have previously undergone strabismus surgery and required reoperation. MethodsSubjects from two ophthalmological centers were included. Preoperative AS-OCT was used to measure the muscle insertion from the limbus, and intraoperative measurements were obtained using calipers. Interclass correlation coefficient and Bland-Altman agreement analysis were used. ResultsA total of 53 horizontal rectus muscles from 24 patients with previous strabismus surgery were analyzed: 27 medial rectus (MR) and 26 lateral rectus (LR) muscles, including both previously operated and previously unoperated muscles. Average AS-OCT measurements of MR was 8.54 ± 2.42 mm and intraoperatively was 9.4 ± 3.09 mm. Average AS-OCT for LR was 8.32 ± 2.25 mm and intraoperatively was 9.34 ± 3.73 mm. 63% of MR muscles and 77% of LR muscles were within 1 mm between AS-OCT and intraoperative measurement. Spearman’s correlation coefficient showed positive correlation between measures for both MR and LR muscles. The interclass correlation coefficient was 0.79 (95% CI, 0.56-0.90) for MR muscles and 0.70 (95% CI, 0.44-0.85) for LR muscles, with a good agreement. Agreement was better for muscles ≤10 mm from the limbus (which included both previously operated and unoperated muscles) than for muscles found >10 mm from the limbus. ConclusionsGood agreement was observed between the measurement of limbus-insertion distance obtained by AS-OCT and by intraoperative measurement, especially when the muscle insertion was ≤10 mm from the limbus.

Internal Limiting Membrane Peeling for Large Macular Holes Induces Only Structural Remodeling without Functional Impairment Over 12 Years

To evaluate the very long-term functional and structural outcomes of internal limiting membrane (ILM) peeling for full-thickness macular holes (FTMH). Observational case series nested within a multicenter, randomized, controlled clinical trial (RCT) (ClinicalTrials.gov: NCT00190190). Patients who underwent vitrectomy with or without ILM peeling for an idiopathic large FTMH in a tertiary ophthalmology center, with a minimum follow-up of 10 years after surgery. Review of charts, spectral-domain OCT (SD-OCT) scans, OCT angiography (OCTA) scans, and microperimetry of patients originally enrolled in the RCT. Primary outcome was functional assessment in both groups (ILM peeling or not) including the retinal sensitivity (RS), distance and near best-corrected visual acuity (BCVA), and number of eyes achieving ≥0.3 logarithm of the minimum angle of resolution >10 years after surgery. Secondary outcomes were structural assessment in the entire 3× 3-mm and 6× 6-mm areas, and regionally in the different areas of the ETDRS grid: OCT and OCTA biomarkers in both groups and fellow eyes. Thirteen eyes of 13 patients with a mean follow-up of 12 ± 0.73 years were included. The mean RS and BCVA, or visual improvement did not differ between ILM peeling (n= 8) and no peeling (n= 5) (all P > 0.05). The dissociated optic nerve fiber layers on en face OCT were only observed in eyes with ILM peeling, predominantly in temporal parafoveal (20%) and perifoveal (19%) rings. The mean total retinal thickness and inner retinal thickness in the parafoveal ring were significantly lower in peeled eyes (309 ± 11 μm and 94 ± 9 μm respectively) versus nonpeeled eyes (330 ± 21 μm and 108 ± 11 μm respectively; P= 0.037 and P= 0.040), without significant difference in ganglion cell or retinal nerve fiber layers. Accordingly, the mean superficial capillary plexus density in the parafoveal ring was significantly lower in eyes with peeling versus without (39.65 ± 3.76 % versus 47.22 ± 4.00; P= 0.005). The mean foveal avascular zone area was smaller in eyes with peeling versus without (0.24 ± 0.05 mm2 vs. 0.42 ± 0.13 mm2, respectively, P= 0.005). Despite persistent structural changes especially in the parafoveal ring, ILM peeling for idiopathic large FTMH did not seem to impact long-term RS or BCVA over 12 years. Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

Estimation of the Economic and Environmental Impact of Single-Use Instruments in Routine Cataract Surgery.

To estimate the economic and environmental impact of single-use instruments (SUIs) to perform standard cataract surgery in six ophthalmology centers located in Europe and in the United States. Online survey and interview. Comparative cost analysis based on an online survey with follow-up questionnaire and interview. The carbon footprint calculation was made by ClimatePartner. Annual costs of reusable instruments (RUIs) were calculated based on data provided by the centers. Annual costs of SUIs were estimated based on the average-selling price of a single-use cataract set of 5 instruments and the reported annual volume of cataract surgery. The calculation carbon footprint of a cataract instrument covered the whole life cycle from production to end-of-life. Annual costs for SUIs were found inferior or similar to the annual costs for RUIs for 4 out of the 6 centers included in this study. The centers where SUIs were demonstrated to be the most cost-effective were also associated with the highest costs of sterilization per instrument. The carbon footprint of 5-years usage of a cataract instrument was found to be 5478.2 kg CO2 eq for SUIs without recycling, 4639.9 kg CO2 eq for SUIs with recycling and 20.6 kg CO2 eq for RUIs. The study demonstrated that SUIs can be an alternative solution to using RUIs in multispecialty hospitals associated with high sterilization costs.

The Pattern of Corneal Diseases in North Kordofan State

Background: All corneal diseases cause ocular morbidity and decrease vision, or even blindness, so early management intervention is critical. This study sought to evaluate several corneal disorders, including corneal foreign bodies, corneal tears, and ruptured globes. Methodology: This retrospective descriptive study was undertaken in El-Obeid Teaching Hospital's Ophthalmology Emergency Department in North Kordofan State, Sudan, as well as Dr. Khalil's Ophthalmology Center. This study sample, which represents the entire corneal illness, was obtained from 1000 patient files for various eye conditions. Results: This study examines 205 patients with corneal disorders to assess the prevalence of corneal diseases in North Kordofan State. The study found that the disease is more common in males, with 48 out of 78 patients (62%) being male and 38% being female. The male-to-female ratio is 1.6:1. The age group that is most affected is the group of individuals younger than 9 years, accounting for 34% of the affected population. This is followed by the age groups of 10–20 years, 21–32 years, 33–53 years, and >54 years, which account for 24%, 18%, 14%, and 9%, respectively. Regarding the classification of corneal disorders, the most prevalent form is foreign body corneal disease, accounting for 38% of cases. This is followed by corneal tear (16%), corneal opacity (15%), corneal tear with iris prolapses (10%), bacterial corneal ulcer (7%), and rupture globe (6%). The incidence rates of viral corneal ulcers, chemical trauma, burn trauma, and keratoconus are 3%, 3%, 1%, and 1%, respectively. Conclusion: Eye trauma is prevalent in north Kordofan, leading to an upsurge in corneal illnesses including foreign body cornea, corneal tear, and ruptured globe.

Risk Factors of COVID-19 associated mucormycosis in Iranian patients: a multicenter study

BackgroundTo evaluate the demographic, clinical, and prognostic characteristics of patients diagnosed with COVID-19-associated mucormycosis (CAM) in Iranian patients.MethodsThis prospective observational study was conducted in 8 tertiary referral ophthalmology centers in different provinces of Iran during the fifth wave of the COVID-19 pandemic. All patients were subjected to complete history taking and comprehensive ophthalmological examination and underwent standard accepted treatment strategy based on the disease stage.ResultsTwo hundred seventy-four CAM patients (most were males (150, 54.7%)) with a mean age of 56.8 ± 12.44 years were enrolled. Patients with a history of cigarette smoking (Adjusted Odds Ratio (AOR) = 4.36), Intensive Care Unit admission (ICU) (AOR = 16.26), higher stage of CAM (AOR = 2.72), and receiving endoscopic debridement and transcutaneous retrobulbar amphotericin B (AOR = 3.30) had higher odds of mortality. History of taking systemic corticosteroids during COVID-19 was significantly associated with reduced odds of mortality (AOR = 0.16). Generalized Estimating Equations analysis showed that the visual acuity of deceased patients (LogMAR: 3.71, 95% CI: 3.04–4.38) was worse than that of patients who were discharged from the hospital (LogMAR: 2.42, 95% CI: 2.16–2.68) (P < 0.001).ConclusionsThis study highlights significant risk factors for mortality in patients with CAM, such as cigarette smoking, ICU admission, advanced CAM stages, receiving transcutaneous retrobulbar amphotericin B and worser visual acuity. Conversely, a history of systemic corticosteroid use during COVID-19 was linked to reduced mortality. These findings underscore the critical need for early identification and targeted interventions for high-risk CAM patients to improve clinical outcomes.

Drug-Induced Intracranial Hypertension: The Adverse Effects of Acne Medications and Topical Retinoids.

Tetracyclines and vitamin A derivatives, major components in acne care and antiaging products, have been associated with the development of drug-induced intracranial hypertension (DIIH). Treatment practices and longitudinal visual outcomes have been highly understudied in DIIH. The purpose of this study was to provide management guidelines for DIIH and report visual outcomes of patients with DIIH. This was a single institute ophthalmology center case-control study where patients were seen between June 1, 2012, and September 1, 2023, in the United States. Patients with an International Classification of Disease (ICD) code for IIH and meeting the IIH diagnostic criteria who were taking a tetracycline or a vitamin A derivative during their diagnosis were included in this study. Patients were stratified into the following 3 categories: tetracyclines only, vitamin A derivatives only, or both, and compared with Kruskal-Wallis rank-sum tests. Poor visual outcomes were evaluated for and defined as a visual field mean deviation (peripheral visual measure) of -7 dB or greater. Individuals were followed for up to 1.5 years after diagnosis. Among patients with IIH (n = 839), DIIH occurred in 8.10% of them (n = 68) with 83% taking the medication for acne. 88% of cases were female, and patients had a mean age of 24.96 years. DIIH medications were taken for an average length of 25.79 weeks before diagnosis of IIH. 20.5% of patients with DIIH were not treated with any IIH medication and were discontinued from the inducing drug. 3 patients had a poor visual outcome on follow-up with all of them taking a vitamin A derivative (P < 0.05). Patients identified as having a poor visual outcome did not report discontinuing the DIIH drug (P < 0.05). We propose treatment guidelines highlighting that patients taking a DIIH medication who develop headaches or visual changes should be immediately referred to ophthalmology, removal of the offending agent, and close monitoring by ophthalmology for vision loss. Importantly, vitamin A DIIH may have more severe visual outcomes, but further research is needed to corroborate this finding.

Ten-Year Effectiveness and Safety of Trabecular Micro-BypassStentImplantation with Cataract Surgery in Patients with Glaucoma or Ocular Hypertension.

This study evaluated 10-year results of implanting one iStent trabecular micro-bypass stent during cataract surgery in eyes with open-angle glaucoma (OAG) or ocular hypertension. This retrospective, non-randomized study examined 10-year outcomes of iStent trabecular micro-bypass stent implantation with cataract surgery by one surgeon in eyes with OAG [including primary OAG (POAG) and pseudoexfoliative glaucoma (PXG)] or ocular hypertension at a multi-specialty German ophthalmology center. Study visits were conducted preoperatively and at 2.5, 3, 5, and 10years postoperatively; examinations included intraocular pressure (IOP), medications, corrected-distance visual acuity (CDVA), and adverse events. A total of 63 eyes of 45 patients with OAG (n = 60 eyes) or ocular hypertension (n = 3 eyes) and data through 10years were analyzed. Mean preoperative IOP was 18.6 ± 4.4mmHg on 1.83 ± 1.03 mean medications. At study visits through 10years postoperative, mean IOP reduced by 12.9-19.0% (p < 0.005 at all points), and mean medication burden reduced by 37.8-51.4% (p ≤ 0.006 at all points). At 10years postoperatively, 77.8% of eyes had IOP ≤ 18mmHg and 47.6% had IOP ≤ 15mmHg (vs. 50.8% and 25.4% preoperatively, respectively; p = 0.016). One-third (33.3%) of eyes were medication-free vs. 3.2% preoperatively (p < 0.001); 17.5% were on 2-5 medications (vs. 55.6% preoperatively, p = 0.005); and 93.7% of eyes were on the same or fewer medications vs. preoperative. Post-phacoemulsification CDVA improvement was maintained; no filtering surgeries were completed over 10-year follow-up. Significant and safe IOP and medication reductions were observed through 10years after iStent implantation with cataract surgery in patients with OAG or ocular hypertension.

Epidemiological and Clinical Study of Adult Cataract at the Secondary Ophthalmology Center of Ouelessebougou About 150 Cases

Epidemiological and Clinical Study of Adult Cataract at the Secondary Ophthalmology Center of Ouelessebougou About 150 Cases

Clinical Course and Pattern of Uveitis in Western Iran

Background: Demographic characteristics apparently play a critical role in the incidence and prevalence of uveitis in different societies. Numerous studies have investigated the demographic-epidemiological factors and clinical patterns of uveitis in Iran; however, no study has been conducted in the west of the country yet. Objectives: To assessed epidemiologic pattern of uveitis in patients residing in the west of Iran. Methods: This study investigated 358 files of uveitis patients referring to the specialized retina-uveitis clinics in a referral hospital in the west of Iran from March 2016 to September 2022. The demographic characteristics, clinical patterns, and complications of uveitis were evaluated in this study. Results: The uveitis patients’ mean age (± SD) at the diagnosis time was 48.14 (± 11.91) years (18 - 72 years), the patients with anterior uveitis had the lowest mean age (45.47 ± 11.54 years), and the patients with panuveitis had the highest mean age (52.90 ± 10.14 years) at the diagnosis time. The prevalence of the disease was equal in both genders; however, posterior uveitis and panuveitis significantly involved males more than females (P &lt; 0.01 and 0.01 respectively). The most common anatomical pattern of involvement belonged to anterior uveitis (34%), followed by panuveitis (23.4%), posterior uveitis (22.9%), and intermediate uveitis (19.5%). The prevalent etiology in anterior, intermediate, and panuveitis were idiopathic and Toxoplasma chorioretinitis was the most common causes in posterior uveitis (34.14%). Moreover, acute clinical course and non-granulomatous pathology were also more prevalent. The most common complications of the disease were cataracts and cystoid macular edema (CME). Also, patients with panuveitis followed by posterior uveitis had the worse visual prognosis. Conclusions: The predominant pattern of involvement in patients referring to the referral center in the west of Iran was in the form of anterior uveitis, acute in terms of clinical course, and non-granulomatous in terms of pathology. This clinical view for evaluation in a referral center differs from the pattern expected to be observed in the general population and even in general ophthalmology centers.

Development and Evaluation of a Retrieval-Augmented Large Language Model Framework for Ophthalmology

Although augmenting large language models (LLMs) with knowledge bases may improve medical domain-specific performance, practical methods are needed for local implementation of LLMs that address privacy concerns and enhance accessibility for health care professionals. To develop an accurate, cost-effective local implementation of an LLM to mitigate privacy concerns and support their practical deployment in health care settings. ChatZOC (Sun Yat-Sen University Zhongshan Ophthalmology Center), a retrieval-augmented LLM framework, was developed by enhancing a baseline LLM with a comprehensive ophthalmic dataset and evaluation framework (CODE), which includes over 30 000 pieces of ophthalmic knowledge. This LLM was benchmarked against 10 representative LLMs, including GPT-4 and GPT-3.5 Turbo (OpenAI), across 300 clinical questions in ophthalmology. The evaluation, involving a panel of medical experts and biomedical researchers, focused on accuracy, utility, and safety. A double-masked approach was used to try to minimize bias assessment across all models. The study used a comprehensive knowledge base derived from ophthalmic clinical practice, without directly involving clinical patients. LLM response to clinical questions. Accuracy, utility, and safety of LLMs in responding to clinical questions. The baseline model achieved a human ranking score of 0.48. The retrieval-augmented LLM had a score of 0.60, a difference of 0.12 (95% CI, 0.02-0.22; P = .02) from baseline and not different from GPT-4 with a score of 0.61 (difference = 0.01; 95% CI, -0.11 to 0.13; P = .89). For scientific consensus, the retrieval-augmented LLM was 84.0% compared with the baseline model of 46.5% (difference = 37.5%; 95% CI, 29.0%-46.0%; P < .001) and not different from GPT-4 with a value of 79.2% (difference = 4.8%; 95% CI, -0.3% to 10.0%; P = .06). Results of this quality improvement study suggest that the integration of high-quality knowledge bases improved the LLM's performance in medical domains. This study highlights the transformative potential of augmented LLMs in clinical practice by providing reliable, safe, and practical clinical information. Further research is needed to explore the broader application of such frameworks in the real world.

Interaction of high-tech perinatal and ophthalmological centers as the basis for favorable outcomes of retinopathy of prematurity

Interaction of high-tech perinatal and ophthalmological centers as the basis for favorable outcomes of retinopathy of prematurity

Highlights of ophthalmological manifestations in newly diagnosed acute leukemia: a correlation with hematological parameters

Acute leukemia is a hematological malignancy affecting different organ systems including the eye and orbit through direct infiltration of tissues or secondary to hematological abnormalities. Ophthalmological manifestations in acute leukemia are variable ranging from asymptomatic presentation to serious manifestations that can alter the disease course and treatment. The purpose of this study is to detect the incidence of different ophthalmological manifestations in newly diagnosed acute leukemia patients and to assess the relationship between ocular findings and hematological characteristics and the sequel of these neoplasms. A cross-sectional study with analytical components was conducted on 222 newly diagnosed acute myeloid and acute lymphoblastic leukemia patients who presented at Oncology Center Mansoura University (OCMU) between January 2022 and February 2023. All patients underwent a complete ophthalmic evaluation at Mansoura Ophthalmology Center (MOC). The mean age was 43.45 ± 17.35 years (range, 17–85), and M/F was 137 (61.7%)/85 (38.3%). One-hundred and forty-four (64.9%) had acute myeloid leukemia (AML), and 78 (35.1%) had acute lymphoblastic leukemia (ALL). Ophthalmic manifestations were detected in 96 patients (43.2%). Among them, 4 (1.8%) had poor visual acuity. Retinal hemorrhage (19.8%) and Roth spots (17.1%) were the most common ocular manifestations. Other ophthalmological manifestations observed were orbital involvement (3.2%), ocular motility issues (1.4%), subconjunctival hemorrhage (5.9%), conjunctival chemosis (0.9%),lid swelling (4.1%), lid ecchymosis (3.2%), lagophthalmos (0.5%), lid ptosis (1.8%), retinal venous congestion & tortuosity (4.1%), preretinal hemorrhage (3.2%), vitreous hemorrhage (3.2%), macular affection (2.3%), retinal infiltration (1.8%), exudative retinal detachment (ERD) (1.8%), cotton-wool spots (0.9%), retinal vein occlusion (0.5%), papilledema (2.8%), optic disc infiltration (1.8%), disc pallor (1.8%).AML patients were significantly associated with a higher frequency of ocular affection, retinal hemorrhages, and Roth spots (P 0.028, 0.003, and 0.046, respectively) compared to ALL patients. Retinal hemorrhage was statistically significantly associated with anemia (P 0.021). Ophthalmological manifestations of acute leukemia are heterogeneous; they can be detected at initial presentations or relapse. Some manifestations are asymptomatic, others can affect visual acuity or even alter the disease course. Cooperation between ophthalmologists and haemato-oncologists is crucial for recognizing ocular involvement and disease management.

Volume and Structure of the Population’s Need for High-Tech Ophthalmological Care in Azerbaijan

Purpose. Determine the volume and structure of high­tech ophthalmological care in Azerbaijan.Materials and methods. Materials from medical histories of patients hospitalized at the National Center of Ophthalmology named after Academician Z. Aliyeva (12 882 cases) for 2019 (from January 1 to December 31) were used. The need of hospitalized patients for high­tech ophthalmological care was determined in accordance with the list of types of high­tech medical care. The volume of demand of the population of Azerbaijan for GPs by type of indications and interventions was established per 100 thousand population with the determination of the average error of the indicator.Results. 14.5 ± 0.3 % of ophthalmological patients received high­tech ophthalmological care. The main types of high­tech ophthalmological care necessary to meet the needs of the population are transpupillary, microinvasive energetic optical­reconstructive and endovitreal 23.25 gage surgery for vitreoretinal pathologies of various origins (75.3 % of all types of operations; 16.63 ± 0.44 operations per 100 thousand population). The second place in the structure is occupied by complex surgical treatment of glaucoma, including microinvasive energy optical­reconstructive and laser surgery with possible implantation of silicone valve or metal drainage (11.3 % of all operations; 2.48 ± 0.17 operations per 100 thousand population).Conclusions. In Azerbaijan, the leading reasons for providing high­tech ophthalmological care are: cataracts complicated by lens luxation, glaucoma, pathology of the vitreous body, retina and choroid (27.0 % of all reasons; 5.96 ± 0.26 cases per 100 thousand population); retinal detachment and tears, tractional retinal detachment, other forms of retinal detachment in adults and children, complicated by pathology of the cornea, lens, vitreous body (22.1 % of all cases, 4.89 ± 0.24 cases per 100 thousand population). The most common type of hightech ophthalmological care is transpupillary, microinvasive energetic optical­reconstructive and endovitreal surgery for vitreoretinal pathologies of various origins (75.3 % of all types; 16.63 ± 0.44 cases per 100 thousand population).

Predisposing factors, clinical and microbiological insights of bacterial keratitis: analysis of 354 cases from a leading French academic centre

AimsTo report an epidemiological update of bacterial keratitis (BK) in a tertiary ophthalmology centre over 20 months compared with a previous study on the same timeframe from 1998 to 1999.Methods354...

Морфофункциональные параметры диабетического макулярного отека после витреоретинальной хирургии

Background. Diabetic macular edema (DME) is a socially significant disease of our time. At the moment, intravitreal administration of antivasoproliferative drugs is the “gold standard” for the treatment of DME. Currently, indication for vitrectomy and membrane peeling for macular edema is the presence of an epiretinal membrane or vitreoretinal traction syndrome. Some authors consider use of vitrectomy with internal limiting membrane peeling to be justified in patients with DME. Purpose. To evaluate changes in the morphofunctional parameters of the retina in patients after vitreoretinal intervention for resistant diabetic macular edema. Methods. 44 patients diagnosed with DME with no response to previous conservative treatment (laser coagulation, angiogenesis inhibitors) underwent surgery at the ophthalmology center of the National Medical Research Center named after N. I. Pirogov. Results When analyzing BCVA after vitreoretinal surgery, a significant increase in functional parameters was revealed in patients of group 2 (vitrectomy) compared with similar parameters in patients of group 1 (continuing treatment) within 6 months from the date of surgery (p = 0.027). There is also a statistically significant decrease in retinal thickness in patients of group 2 compared with patients of group 1 within 1 month (p = 0.035). When assessing photosensitivity, there was a significant increase in parameters in patients of group 2 compared with preoperative parameters and with similar parameters in patients of group 1 within 1 week from the moment of surgery (p = 0.023). Conclusion. It was found that vitreoretinal surgery with membrane peeling provides a higher functional result compared to the group where only angiogenesis inhibitors and retinal laser coagulation were used from 6 to 12 months of observation. By the 1st week of observation, in patients of group 2, in comparison with the results of patients in group 1, there was a more pronounced positive dynamics of photosensitivity which persisted for 12 months. More pronounced edema resorption was also observed in the group in which vitrectomy with internal limiting membrane peeling was used. Thus, these data confirm that use of vitreoretinal surgery is possible in the treatment of diabetic macular edema. Further study of this issue is required. This study was conducted on a small sample of patients. To confirm the statistical reliability of the results, it is necessary to study the data when examining a larger sample in groups. Key words: DME; diabetic macular edema; vitrectomy; membrane peeling.