Introduction: Phthisis bulbi is an end stage ocular disease caused by injury, long term eye disease and infection. The adipocytic metaplasia within the ocular coat is a rare variety of metaplasia. Case: An 18 year-old female presented with complaints of severe dimness of vision in the right eye for last 11 years. Observation: Slit lamp examination showed total cataract, shallow anterior chamber and enophthalmos in the right eye. As the right eye was blind, enucleation with silicon ball implant was advised. Histopathological examination of the eyeball showed evidence of phthisical eye, exudative retinal detachment with extensive osseous and adipocytic metaplasia. Conclusion: Adipocytic metaplasia of retinal pigment epithelium is a very rare feature observed in intraocular pathology.

Descemet stripping automated endothelial keratoplasty (DSAEK) is performed for corneal endothelial pathology. It had gained popularity over penetrating keratoplasty (PK) because of better outcome. Retrospective data was collected from records of patients who underwent DSAEK from 2005 to 2019. Demography, indications and post-operative complications of DSAEK were analyzed. Outcome was measured in terms of graft clarity and vision. 93 eyes of 86 patients had undergone DSAEK in the study period of 15 years. Average age of the patients was 61.0 years. 55.9% were female. The common indications for DSAEK were cataract surgery related bullous keratopathy (n=47, 50.5%), Fuchs dystrophy (n=22, 23.6%) and failed graft (n=11, 11.8%). 8.6% of surgeries had graft detachment and 5.3% had pupillary block in the early post-operative period. Outcome analysis was done for cases (n=80) which had follow-up duration of at least 2 months (range: 2 months to 11 years; average: 28.5 months).Endothelial rejection occurred in 8 cases (10.0%), 5 of which regained graft clarity after treatment. At the last follow-up visit, 23.8% (n=19) of grafts had failed, which was mostly due to endothelial failure (n=16); 3 grafts failed due to infective keratitis. 42.5% (n=34) acquired best corrected vision of 6/18 or better. The average astigmatic error was 1.6 Diopter Cylinder by refraction. DSAEK showed good outcome with our results comparable to other studies. It had replaced traditional PK in our institute for endothelial dysfunction. Surgeons in the country should be encouraged and trained to do the procedure.

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Many studies have shown that eye health services in Nepal are still far behind in reaching schools. Therefore, the aim of this study is to examine the teacher's self-efficacy for the incorporation of eye health promotion activities. A cross-sectional study design was applied with a self-administrated questionnaire. A total of 292 teachers were randomly selected for this study. Male (153.38) older-aged and Dalit ethnic group (159.81) teachers, as well as teachers who had participated (146.85) in the program, had higher self-efficacy to conduct school eye health-promoting activities than non-participants in schools. But, teaching experience is not determined to get self-efficacy for testing of visual acuity. Teachers with higher qualifications are found to be skillful. The school's eye health program has not been superseded by any relevant legislation. As a result, it's critical to concentrate on provisions that may be included in the school curriculum.

This study aimed to analyse the clinical retinal examination findings and undilated Optomap ultrawide field retinal imaging for the detection of proliferative diabetic retinopathy (DR) as compared to the fluorescein angiography (FA). In this retrospective cross-sectional study, five hundred and twenty-three patients diagnosed with diabetic retinopathy on dilated retinal examination underwent fluorescein angiography and undilated Optomap imaging. Fluorescein angiography and undilated Optomap images were graded by masked graders and the diagnosis was labelled either as proliferative diabetic retinopathy or non-proliferative diabetic retinopathy. Sensitivity and specificity was calculated comparing the diagnosis obtained from the dilated retinal examination and the undilated Optomap images against the fluorescein angiography image findings. Gradable quality fluorescein angiography and undilated Optomap images with a clinical diagnosis mentioned in the medical record for that particular visit were available in 980 (right eye - 656; 67%; left eye - 324; 33%) eyes of 496 patients. There were 332 (67%) males and 164 (33%) females with a mean age of 60.3 ± 9.51 years (range: 32 - 81 years). Sensitivity of clinical examination and undilated Optomap images in accurately identifying proliferative diabetic retinopathy was 63.5% and 43.5% respectively. Specificity of clinical examination and undilated Optomap images in accurately identifying proliferative diabetic retinopathy was 88.5% and 76.2% respectively. On comparison of the undilated Optomap imaging findings against the clinical examination findings, the sensitivity and specificity were 47.7% and 75.1% respectively. Both clinical fundus evaluation and undilated Optomap imaging were relatively inferior to fluorescein angiography in the detection of proliferative diabetic retinopathy, which hence remains the choice of imaging modality giving scope for wider application.

Dry eye is one of the frequently encountered ophthalmological disorders. Following the pandemic of Coronavirus disease 2019, use of masks and electronic devices has taken an upraise globally. These factors are one of the causes for dry eye disease. This study emphasises dry eye symptoms among lecturers working in medical colleges of Nepal. This was a descriptive cross sectional study conducted among 217 lecturers working in various medical colleges in Nepal. Dry eye evaluation was done using the Ocular Surface Disease Index (OSDI) questionnaire. Analysis of data was using Microsoft Excel 2016 and IBM Statistical Package for Social Sciences (SPSS) version 26.0. One fourth (25.80%) of 217 participants experienced symptoms of dry eye disease. Increasing use of mask and laptop during this pandemic era has shown to cause mild dry eye symptoms in lecturers working in medical colleges of Nepal. Proper care and precaution needs to be practised in order to minimise dry eye symptoms and its consequences.

Introduction: One of the leading causes of dry eye syndrome (DES) is found to be diabetes mellitus (DM). The current study was conducted to detect possible tear film anomalies among diabetic individuals attributable to dry eye. The study aimed to assess the proportion of dry eye syndrome among patients with Type 2 diabetes mellitus. Materials and methods: Two hundred patients with Type 2 diabetes mellitus who came to the Ophthalmology OPD from October 2018 to November 2020 in the 29-60 years age group were included in the study. Patient data, diabetic history, dry eye symptoms, blood sugar values and tests to measure tear volume and tear film instability were carried out among patients and dry eyes were graded. Results: The proportion of patients with dry eye symptoms among Type 2 diabetes mellitus were 61%. Mild dry eye syndrome was observed in 27%, moderate dry eye syndrome in 59% and severe dry eye syndrome in 14%. A statistically significant difference (p<0.05) was noted between the severity of dry eye syndrome and dry eye test parameters. A strong positive correlation (r = 0.923) was noted between severity of dry eye syndrome and Standardised Patient Evaluation of Eye Dryness (SPEED) score which was statistically significant (p < 0.001). Conclusion: In our study, there was higher prevalence of dry eyes in patients who had Type 2 diabetes Mellitus which might be attributed to reduced tear secretion in diabetes mellitus patients caused by autonomic dysfunction in these patients. We recommend that dry eye evaluation should be an integral part of ocular examination in diabetic patients for early detection and treatment so that further complications can be prevented, which may lead to severe visual impairment.

Diabetic retinopathy (DR) is one of the leading causes of blindness in patients between 20 and 60 years of age which can be prevented by early detection of diabetic retinopathy. The duration of diabetes is probably the strongest predictor for development and progression of retinopathy. Optical Coherence Tomography (OCT) is a recent advance in imaging which is sensitive in early detection of small changes in macular thickness. This hospital based cross-sectional study was done at a tertiary referral center in Kathmandu, Nepal where 364 eyes of 182 patients (182 eyes in 91 patients in each group diabetes without retinopathy group and nondiabetic group) were evaluated. Thickness of the macula was determined by using Spectral Domain Optical Coherence Tomography (SD- OCT) and compared between diabetic patients without clinical retinopathy and nondiabetic patients. The mean CMT as measured by Spectral Domain Optical Coherence Tomography in diabetic patients was 236.29±40.31 µm whereas it was 244.25±30.51 µm in non-diabetic cases. The mean central macular thickness of diabetic patients with duration of diabetes less than 1 year, 1-5 years, 6-10 years, 11-15 years and more than 15 years were 217.19±42.22, 233.49±45.69, 248.5±31.37, 250.89±21.62 and 240.75±11.26 respectively. This study concluded that in diabetic patients there was an initial decrease in central macular thickness which gradually increased with increasing duration of diabetes mellitus. Examination of macular thickness could be a useful modality to evaluate progression of disease before appearance of other clinical signs of diabetic retinopathy.

Tuberculosis remains a major public health problem in Nepal and anti-tubercular drugs used for the treatment of pulmonary and extrapulmonary tuberculosis can be associated with ocular toxicity. This prospective study aimed to evaluate the incidence of ocular toxicity among patients receiving anti-tubercular therapy and to assess the change in visual functions and ocular imaging before and after use of anti-tubercular therapy. A total of 89 eyes of 45 TB patients taking anti-tubercular therapy were enrolled. Detailed history and examination including best-corrected visual acuity (BCVA), colour vision (Farnsworth D-15t), contrast sensitivity (Pelli-Robson chart), Goldman visual field analysis and spectral domain optical coherence tomography for retinal nerve fibre layer (RNFL) analysis were assessed at baseline and at 6 months after starting anti-tubercular therapy. Visual evoked potential (VEP) was performed in suspected cases. The mean age of the patients was 29.13±14.00 years and 62.2% were males. The mean weight of the subjects was 54.37±10.36 kg, mean daily dosage of ethambutol was 17.91±1.74 mg/day/kg and mean administration duration was 2.71±1.54 months. The incidence of ocular toxicity was 2.24%. Bilateral retrobulbar optic neuropathy occurred in a 27-year female of 55 kg receiving ethambutol (20 mg/kg/day) for 6 months for Pott's spine. Her best-corrected visual acuity in both eyes was reduced to 6/36 from 6/6 and developed non-specific color vision defect, decreased contrast sensitivity, bilateral cecocentral visual field defect and mean decrease in retinal nerve fibre layer thickness compared to the baseline data. In rest cases, a statistically significant decrease in mean retinal nerve fibre layer thickness in both eyes suggested the evidence of subclinical toxicity. Though less common, ethambutol toxicity can occur in patients under anti-tubercular therapy in the form of retrobulbar optic neuritis. Decreased contrast sensitivity and thinning in the mean retinal nerve fibre layer thickness can be the indicator of subclinical toxicity.

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