Eye Health Research Articles

Effect of Dietary Carotenoids and Lutein on Eye Health Maintenance in Elderly People

This study aimed to explore the maintenance effect of dietary carotenoids and lutein on the eye health of elderly people. By analyzing the types and characteristics of carotenoids, as well as the characteristics of lutein and its interaction with carotenoids, we have studied their mechanism of action in eye health. Further, we discussed in detail the specific effects of dietary carotenoids and lutein on the eye health of older people, including the prevention of macular degeneration and other senile eye diseases, the improvement of vision, and the impact on light sensitivity. In order to help the elderly effectively take in these nutrients, we provide suggestions on the selection and use of foods containing carotenoids and lutein, as well as suggestions and precautions for dietary plans. Finally, through a case study, we show the positive impact of adopting good diet and supplement strategies on eye health in a real case.

Effects of Acute Mental Stress on Choroidal Thickness.

Purpose: Previous studies have indicated an association between education and myopia, suggesting that numerous stress events during the educational process may influence eye health. This study aimed to investigate the impact of mental stress induced by mental arithmetic (MA) on choroidal thickness (CT). Methods: This study included 33 participants aged between 19 and 29 years. Swept-source optical coherence tomography (SS-OCT) was used to capture images of the posterior segment of the left eye during baseline and MA to assess changes in the CT. After denoising and compensation, the baseline images and MA images that had been rigidly registered and resampled to the baseline images were segmented using a deep learning-based method. Based on the segmentation results, the CT within the regions of 1 mm and 3 mm diameter centered at the lowest point of the fovea was calculated. Results: Significant increases were observed in both CT1mm and CT3mm during MA, with mean changes of 2.742 ± 7.098 μm (p = 0.034) and 3.326 ± 6.143 μm (p < 0.001), respectively. Conclusions: Thickening of the choroid has been observed during acute mental stress. We speculate that long-term or chronic mental stress could have a potential adverse impact on myopia progression.

Impact of COVID 19 on Eye Health Access - Patient Perspectives

Impact of COVID 19 on Eye Health Access - Patient Perspectives

Enhanced Intrusion of Exogenous Airborne Fine Particles toward Eyes in Humans and Animals: Where Damaged Blood-Ocular Barrier Plays a Crucial Role.

Emerging data suggest a close correlation between ambient fine particle (AFP) exposure and eye disorders and pinpoint potential threats of AFPs to eye health in humans. However, the possible passage (including direct intrusion) and the interactions of AFPs with the eye microenvironment in addition to morphological and physiological injuries remain elusive. To this end, the likely transport of AFPs into the eyes via blood-ocular barrier (BOB) in humans and animals was investigated herein. Exogenous particles were recognized inside human eyes with detailed structural and chemical fingerprints. Importantly, comparable AFPs were found in sera with constant structural and chemical fingerprints, hinting at the translocation pathway from blood circulation into the eye. Furthermore, we found that the particle concentrations in human eyes from patients with diabetic retinopathy were much higher than those from patients with no fundus pathological changes (i.e., myopia), indicating that the damaged BOB increased the possibility of particle entrance. Our diseased animal model further corroborated these findings. Collectively, our results offer a new piece of evidence on the intrusion of exogenous particles into human eyes and provide an explanation for AFP-induced eye disorders, with substantially increased risk in susceptible individuals with BOB injuries.

Ocular problems among divers: a systematic review

Background: Scuba diving has been associated with various ocular conditions, affecting divers of all skill levels, from beginners to experienced individuals. Barotrauma, often caused by mask squeeze, is a well-documented issue in diving. Understanding the common eye problems divers encounter is crucial to ensure divers can take necessary precautions and safeguard the health of their eyes during and after dives. We conducted a systematic review to evaluate the various ocular problems that divers may face, explore their underlying causes, discuss preventive measures, and outline potential treatments. Methods: A systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) from the PubMed and Cochrane Library databases. Study quality and risk of bias were assessed using a checklist from Joanna Briggs Institute (JBI). Results: We included 10 kinds of literature from all over the world, mostly originating in the United States region. The most common ocular problems are subconjunctival hemorrhage, proptosis, periorbital swelling and ecchymoses, and diplopia. More serious cases, such as intraorbital hemorrhage, proptosis, central retina artery occlusion, and optic nerve avulsion, were also reported. Conclusions: Understanding and addressing divers' ocular problems is essential to protecting their eye health and enhancing their diving experience. By implementing preventive measures, divers can effectively mitigate the risks and promote the overall well-being of their eyes while immersing themselves in the wonders of the underwater world.

Describing the Eye Health of Newly Arrived Refugees in Adelaide, South Australia.

This study describes the eye health of newly arrived refugees attending a state-funded health service in Adelaide, South Australia, helping to address the paucity of data on the eye health of refugees. Patients attending the Refugee Health Service undergo comprehensive assessment by an on-site optometrist with accredited interpreters if they have eye symptoms, personal or family history of eye disease, or visual impairment (using World Health Organization definitions). A retrospective audit of this service was performed to obtain patient demographics, presenting best-corrected distance visual acuity (better-seeing eye), diagnoses, and management. In 2017-2018, 494 of the 1400 refugees attending the service underwent an optometry assessment (age range 1-86 years, mean age 33.1 ± 18.6 years, 53% female). Regions of origin included the Middle East (25%), Bhutan (24%), Afghanistan (22%), Myanmar (15%), and Africa (14%). Of the 124 cases of visual impairment, 78% resolved with corrective lenses and 11% were due to cataracts. Ophthalmology follow-up was required for 56 (11%) patients, mostly for cataracts (22 patients). Newly arrived refugees have high rates of visual impairment from refractive error and cataracts. Integration of optometry and state-based refugee health services may improve the timely detection and treatment of these conditions.

Ophthalmological changes from the pregnant woman's point of view: A symptomatic analysis

Introduction: During pregnancy, the eyes may undergo transient changes, which may, even rarely, affect visual functions. The present study aimed to understand the context and perception of ophthalmological changes in pregnant women. Methods: this is a descriptive, qualitative, and quantitative study conducted using a questionnaire via Google Forms between April and October 2023. The target population was pregnant women monitored by professionals at the Basic Health Units in Fortaleza, Ceará. The data was analyzed using Excel software and subjected to descriptive statistical analysis. Results: 52 responses were obtained from pregnant women. Most participants (69.2%) were in the third trimester of pregnancy, and most (96.2%) did not have periorbital chloasma. As for other ophthalmic changes, most pregnant women did not experience significant changes in ocular degree or intraocular pressure. A low frequency of ophthalmic consultations during pregnancy was observed, highlighting a gap in ophthalmic monitoring practices. Conclusion: the results highlight the importance of early screening for ophthalmic alterations during pregnancy, especially in pregnant women with risk factors, for more effective interventions and the promotion of maternal-fetal eye health. Raising awareness of the need for regular assessments can significantly contribute to the prevention and appropriate treatment of these alterations.

Exploring the Link between Sleep Disorders and Ocular Health: A Comprehensive Clinical Study

ABSTRACT Background: Sleep disorders and ocular conditions are prevalent health concerns with significant impact on the quality of life. However, the relationship between them remains underexplored. Additionally, therapeutic interventions targeting both sleep and eye health are explored. Materials and Methods: A prospective clinical study was conducted involving 500 participants aged between 30 and 65 years, recruited from an outpatient clinic specializing in sleep disorders and ophthalmology. Participants underwent comprehensive assessments including polysomnography for sleep disorders diagnosis and ophthalmic examinations for ocular condition evaluation. Sleep quality was assessed using standardized questionnaires, while ocular health was evaluated through clinical examination, including measurements of intraocular pressure, tear film break-up time, and retinal imaging. Statistical analyses were performed using Chi-square tests and logistic regression models to determine associations between sleep disorders and ocular conditions, adjusting for potential confounders. Results: Among the participants, 35% were diagnosed with sleep apnea, 25% with insomnia, 20% with dry eye syndrome, 15% with glaucoma, and 10% with diabetic retinopathy. Significant associations were found between sleep disorders and ocular conditions. Participants with sleep apnea were more likely to have dry eye syndrome (odds ratio [OR] = 2.5, 95% confidence interval [CI] = 1.8–3.4, P &lt; 0.001) and glaucoma (OR = 1.8, 95% CI = 1.3–2.5, P = 0.002). Similarly, insomnia was associated with dry eye syndrome (OR = 2.2, 95% CI = 1.5–3.1, P &lt; 0.001) and diabetic retinopathy (OR = 1.6, 95% CI = 1.1–2.3, P = 0.012). Conclusion: This study highlights the significant association between sleep disorders and ocular conditions, suggesting a potential bidirectional relationship.

Characteristics of astigmatism in school-age children aged 5 to 13 years in northeast Sichuan: a cross-sectional school-based study.

Astigmatism is closely associated with myopia progression, vision loss, eye fatigue and amblyopia, which seriously endangers children's eye health. This study aims to investigate the prevalence and characteristic distribution of astigmatism in children in Langzhong City, providing valuable insights for allocating resources and develop prevention and control strategies. A cross-sectional study and random sampling survey were conducted. Between January and November 2021, 21,415 students aged 5 to 13 years from 14 primary schools in Langzhong City underwent non-cycloplegic refractive testing using autorefraction. The data on myopia were analyzed using SPSS (Statistical Package for the Social Sciences) version 23.0. The inclusion criterion was set at an absolute astigmatism value of ≥0.50D. Among the 21,415 children studied, 61.70% were found to have astigmatism. The prevalence of astigmatism varied significantly across different grades (χ2=501.414, P<0.001). The predominant types of astigmatism were mild astigmatism (0.50-1.00D) and with-the-rule astigmatism. Mixed astigmatism was primarily observed in children in grades 1 and 2, while compound myopic astigmatism was more common in children in grades 3 to 6. These differences were statistically significant. As the degree of astigmatism increased, the proportions of against-the-rule astigmatism, oblique astigmatism, compound myopic astigmatism, and simple hyperopic astigmatism decreased, whereas the proportions of with-the-rule astigmatism, mixed astigmatism, and compound hyperopic astigmatism increased. The prevalence of astigmatism among school-age children aged 5 to 13 years in northeast Sichuan is notably high, with compound myopic astigmatism and with-the-rule astigmatism being the most common types. Regular refractive examinations are crucial for the early detection and management of astigmatism.

Impact of Consumption of Antioxidant Fortified Eggs on Eye Health: A Randomized Controlled Trial

Impact of Consumption of Antioxidant Fortified Eggs on Eye Health: A Randomized Controlled Trial

Behaviour quantification of Sm3+ in borotellurite glass phosphors for warm-colour illumination

Lighting in unconventional environments is closely related to eye health and circadian rhythms, making it essential for warm-colour light sources to align with technological advancements in solid-state lighting. Herein, warm light in spectral region over 550 nm is realised in Sm3+ doped multicomponent borotellurite (MBT-Sm) glass phosphors as colour converters for LEDs/LDs and their luminescent behaviours are quantified in detail. MBT-Sm glass phosphors standout for their high transparency and the large absorption/emission cross-section, with high quantum efficiency of 84.1 % and quantum yield of 19.15 % under violet LED excitation, and a high luminous flux of 3.33 lm under 50 mW laser. Remarkably, it not only possesses superior colour performance with the correlated colour temperature below 2000 K and colour purity up to 99.8 %, but also shows excellent heat resistance of luminescence. MBT-Sm glass phosphors show promising applications as colour conversion materials in innovative lighting technology.

PVSAT Optical strategy to boost glass sales in Sintang City

Pvsat Optics is a private company operating in the eye health sector. Glasses are one of the products at Optik Pvsat. Glasses are a visual aid for someone who suffers from nearsightedness or farsightedness. This research aims to determine Pvsat Optical's strategy for increasing glass sales in Sintang. The research method used in this research is descriptive qualitative research. Data collection techniques in this research were collected by interviewing customers, documentation, and observation. This research shows that Optik Pvsat uses several strategies to increase sales, namely conducting training for employees and implementing marketing strategies by utilizing social media. Promotions implemented by Optik Pvsat include promotions online and in person. Online promotions include social media such as WhatsApp and Instagram, while offline promotions include banners/billboards or direct education to customers. This education conveys the customer's benefits of using glasses.

Proportions and incidence rates of corneal lesions

Many corneal lesions end in corneal blindness by opacity. Eye Bank, which is not yet available in Yemen, is the source of substituted corneal grafts to retain eye vision. This study compared percentages and incidence rates of corneal lesions in two samples of total 2600 patients in 1993 and 1440 patients in 2004 who attended the same clinic. From the total new eye patients, these with corneal lesions either isolated or combined underwent the same determinants to show demography, etiology, and laterality through documenting their basic data, full history, and examinations. Results: Respectively among the tow samples, a total of (141) 5.42% and (135) 9.38% (belonging to (130) 5.0% and (118) 8.19% patients) had corneal lesions distributed among all age groups, with the age group of 19- 50 years constituted (66) 50.77% and (65) 55.08%. The demography in (number) percentage and incidence rates were as follows: samples were comparable higher among males in (80) 61.54%, 3.08%, and (84) 71.19%, 5.48%, monocular (130) 92.2%, 5.00%, and (118) 87.41%, 8.19%, and AGMH received (79) 66.94%, 5.49%, and (118) 87.0%, 8.00% of the total attendance from outside Sana'a city. Right eye was in (48) 34.04%, 1.85%, and (75) 55.5%, 5.21%. Among etiologies, the incidences were: trauma (69) 2.65%, (61) 4.24%, inflammation (36) 1.38%, 3.08%, and (18) 1.25%; both are controllable and constituted 66.7% and 51% of the total corneal lesions. Then degenerative lesions (12) 0.423%, (9) 0.625%, keratoconus (8) 0.307%, (12) 0.833%, edema (5) 0.231%, (12) 0.833%, dryness (5) 0.192%, (7) 0.278%, dystrophy (4) 0.154%, (8) 0.416%, congenital (2) 0.076%, (6) 0.416%, and tumors were only in 2004 as (2) 0.138%. Conclusion: The incidence rates of corneal lesions were 5.0 and 8.0%, and the proportions of the controllable trauma and inflammations were 66.67% and 51.1%, reflecting the need for wide distribution of eye health centers among the country.

Prevalence and Pattern of Ocular Diseases among Rural Dwellers in Affa, Enugu State

Background: The prevalence and pattern of different ocular diseases among rural dwellers vary in different parts of the world. It is usually influenced by a numerous factor, including but not limited to utilization of eye care services, socio-economic status, and level of education. Aim: To identify the most prevalent eye diseases and their pattern of occurrence, among rural dwellers in South East Nigeria, with a view to influence targeted health policies and subsequently, targeted interventions to improve eye health in the region. Methods: The study was a cross sectional study involving patients willing to participate in the study during a one-day free eye outreach organized by the Ophthalmology department, ESUTH Parklane at Affa Community in Udi Local Government Area of Enugu state. A preliminary visit was made one week prior to the health outreach, by some members of the outreach team to mobilize the community, seek their consent and fix a date through their leaders. On the day for the outreach, the objective of the eye screening was explained to the participants in both English and their local language. Subsequently, informed consent was obtained and each subject registered and the bio-data documented. Registered participant had their unaided and aided Visual Acuity (VA) of each eye determined. Then, the anterior and posterior segment was examined. Data collected were recorded using a proforma and later inputted into a computer, cleaned and analysed using SPSS version 21. Results were presented in tables and represented in frequencies percentages. Association between variables were done using t-test and p- value of &lt;0.05 was considered significant. Results: One hundred and sixty-eight participants were screened during the outreach programme/study with mean age of 40+0.5years. There were more females 116 (69.1%) than males 52 (30.9%), giving a female to male ratio of 2:1 and they are predominantly Christians and farmers. The common ocular problems among the participants include cataract 53 (22.6%), refractive error 37 (15.8%), Pterygium 35 (14.9%). Cataract was the most common eye disease among the outreach participants and responsible for 22.6% of all ocular problems. Normal visual acuity was found more in participants &lt; 50 years of age, mild visual impairment occurred more in participants 51-70 years while moderate visual impairment to blindness were seen more in patients &gt;70 years. Conclusion: In this study, the commonest ocular problems among the participants include Cataract, Refractive error, and Pterygium which are reversible causes of visual impairment and blindness. Therefore, health policies and advocacies should be directed towards reducing the burden of these reversible causes of visual impairment and blindness among the rural dwellers which constitute greater proportion of our population.

Underserved groups could be better considered within population-based eye health surveys: a methodological study

ObjectivesIn pursuit of health equity, the World Health Organization has recently called for more extensive monitoring of inequalities in eye health. Population-based eye health surveys can provide this information, but whether underserved groups are considered in the design, implementation, and reporting of surveys is unknown. We conducted a systematic methodological review of surveys published since 2000 to examine how many population-based eye health surveys have considered underserved groups in their design, implementation, or reporting. Study Design and SettingWe identified all population-based cross-sectional surveys reporting the prevalence of objectively measured vision impairment or blindness. Using the PROGRESS + framework to identify underserved groups, we assessed whether each study considered underserved groups within 15 items across the rationale, sampling or recruitment methods, or the reporting of participation and prevalence rates. Results388 eye health surveys were included in this review. Few studies prospectively considered underserved groups during study planning or implementation, for example within their sample size calculations (n = 5, ∼1%) or recruitment strategies (n = 70, 18%). The most common way that studies considered underserved groups was in the reporting of prevalence estimates (n = 374, 96%). We observed a modest increase in the number of distinct PROGRESS + factors considered by a publication over the study period. Gender/sex was considered within at least one item by 95% (n = 367) of studies. Forty-three percent (n = 166) of included studies were conducted primarily on underserved population groups, particularly for subnational studies of people living in rural areas, and we identified examples of robust population-based studies in socially excluded groups. ConclusionMore effort is needed to improve the design, implementation, and reporting of surveys to monitor inequality and promote equity in eye health. Ideally, national-level monitoring of vision impairment and service coverage would be supplemented with smaller-scale studies to understand the disparities experienced by the most underserved groups.

Accessibility of and barriers to the use of eye health services in Kumasi Metropolis, Ghana.

There is a high prevalence of vision impairment and blindness in Africa. The poor access to eye health services, among other barriers, has been found to have a considerable effect on the burden of avoidable vision loss and blindness, particularly in low- and middle-income countries. To determine the accessibility of and barriers to the utilisation of eye health services in the Kumasi Metropolis of Ghana. A descriptive cross-sectional survey was conducted in the Kumasi Metropolis of the Ashanti Region in Ghana to identify barriers affecting the utilisation of eye health services. Convenience sampling was used to recruit participants visiting the eye clinics at five selected District Municipal Hospitals for the first time. Data were collected by means of questionnaires and analysed using Statistical Package for Social Sciences (SPSS). Barriers faced by participants when accessing eye health services included distance to the clinic, cost of services, time spent away from work and/or school, self-medication and long waiting periods. The study found that eye care services in the Kumasi Metropolis, Ghana are largely accessible, but underutilised. Improvement of public health education initiatives through engagement with community groups will also enhance uptake at health care facilities.Contribution:Underutilisation of health services in the Metropolis has been identified in the study and must be addressed by health managers in various sectors. Accessibility is relatively good but can further be improved especially for the elderly to be able to utilise health care services with ease.

Linear Regression Based Machine Learning Model for Cataract Disease Prediction

Blindness and visual impairment have become major health problems today, with one major source of impairment being the formation of cataract disease. Cataract disease affects around 20 million individuals worldwide, with three out of every four being above the age of 60. A cataract is a clouding of the lens that impairs vision and can lead to blindness. Accurate and convenient detection of cataracts is essential for improving this condition. This paper presents a model based on linear regression to predict the presence of cataracts from images of the human eye. Experiments were conducted to validate the model. Various image processing techniques have also been used to perform image preprocessing and contrast enhancement, with patients notified about their eye health via SMS.

Assessing awareness and treatment knowledge of preventable blindness in rural and urban South African communities.

Preventable blindness is a global public health problem. In South Africa (SA) the prevalence of blindness is increasing, with a higher proportion of cataracts than the global norm, and a large rural population with limited access to specialised eye-care services. To determine the level of knowledge regarding preventable blindness and treatment options within a rural and urban population. Rural and urban areas in the Eastern Cape, SA. A descriptive cross-sectional study was conducted among 309 participants. Questionnaires were administered by fieldworkers at the different sites. Proportions were calculated and χ2 tests done to determine whether there was any significant relationship between the categorical variables. Data analysis was done using Stata version 15. Participants were almost equally distributed among the urban (49.2%) and rural areas (50.8%). Both groups had a similar composition of males and females. Most participants had completed high school. The results showed a statistically significant difference between the urban and rural participants' knowledge about the causes of blindness: refractive error χ 2 (1, N=30) = 8.20, p<0.05, and cataract χ2 (1, N=28) = 8.64, p<0.05. The top two differences in the views between urban and rural participants regarding symptoms associated with eye problems (p<0.05) were: 'people who need spectacles have double vision', χ2 (1, N=122) = 28.19; and 'people who need spectacles squint their eyes', χ2 (1, N=124) = 17.37. The majority of urban participants reported opting to go to a private optometrist for eye health services, while the majority of rural participants would go to a pharmacy. Both groups were aware of the role of ageing in blindness. Urban participants in this study appeared to be more knowledgeable than rural participants about the causes and symptoms of blindness and its treatment options. These findings should provide some value to those who provide primary healthcare services in rural areas as there is a clear opportunity for patient education and health promotion regarding the causes and symptoms of these common preventable causes of blindness. Addressing this knowledge gap regarding the causes and symptoms of blindness and the treatment options is a critical first step for awareness programmes in rural areas. Without this, there will be little demand for any treatment or service. Future studies are needed to understand which health promotion interventions are effective in preventable blindness in rural populations.

Primary and tertiary management of ocular surface lesions in HIV-infected patients in Ehlanzeni, Mpumalanga Province.

In sub-Saharan Africa, ocular surface squamous neoplasia (OSSN) is the most common ocular surface tumour and is strongly associated with HIV infection. This range of ocular malignancies can be managed early to prevent large tumours requiring invasive treatment, facial disfigurement and mortality. Primary healthcare workers (HCWs) play a critical role in the early identification of the lesion. In addition, the ocular lesion can also be the presenting sign of HIV infection in individuals who have not yet been diagnosed. The aim of the present study was to assess the management of suspicious conjunctival growths in HIV-infected patients in primary health facilities and a specialist eye clinic in South Africa. To assess the knowledge, attitude and current practice of HCWs working in HIV clinics regarding ocular surface lesions and to evaluate the management of patients with ocular surface lesions at a tertiary hospital. A cross-sectional study design was used (November 2020 - May 2021), for which 149 HCWs were invited to assessments about their knowledge, attitudes and practices regarding ocular surface lesions. In addition, files of patients with ocular surface lesions who presented between January 2018 and August 2020 to the eye clinic were reviewed using a data extraction sheet. One hundred-and-three HCWs agreed to participate in the survey (response rate 69.1%). Of these participants, 84.5% were experienced professional nurses (6 - 15 years of work experience) but had minimal experience with detection and management of eye complaints and lesions. Twenty-seven (26.2%) of the participants recognised some ocular surface lesions and 86 (83.5%) reported that they would refer patients with suspicious lesions. Sixty-two files were reviewed and 51 (82.2%) of the patients had an HIV-positive diagnosis. Fifty percent had carcinoma-in situ and squamous cell carcinoma of the conjunctiva. Thirty-one (50%) of the patients were lost to follow-up. OSSN is an important manifestation of HIV infection. It would be beneficial for patients to receive a basic ocular examination as part of the baseline clinical evaluation; this may contribute to early referral to an eye care facility. The health system would benefit from establishing an eye health support system with the nearby health facilities, thereby educating primary HCWs about the association between HIV and OSSN.

Combination of 2 test methods, single-picture optotype visual acuity chart and spot™ vision screener, in the eye health screening program for 3-year-old children in Tokyo: A retrospective, observational study.

To evaluate the usefulness of the Tokyo Metropolitan Government's Eye Health Screening Program for 3-year-old children, which combines the Single-Picture Optotype Visual Acuity Chart (SPVAC) and Spot™ Vision Screener (SVS) tests. This was a retrospective, observational, matched study. Patients who underwent the eye health screening program and had abnormalities were classified into 3 groups according to the outcomes of the SPVAC (SPVAC-passed, SPVAC-P; SPVAC-failed, SPVAC-F) and SVS (SVS-passed, SVS-P; SVS-failed, SVS-F) tests as follows: SPVAC-P/SVS-F, SPVAC-F/SVS-P, and SPVAC-F/SVS-F. We evaluated the age at examination, SPVAC and SVS test success rates, and SVS refractive power. Additionally, the rates of refractive error, amblyopia, and strabismus were compared among the 3 groups. The SPVAC-P/SVS-F, SPVAC-F/SVS-P, and SPVAC-F/SVS-F groups comprised 158, 28, and 74 eyes, respectively. The mean age was 37.4 months. The success rates of the SPVAC and SVS tests were 69.8% and 96.2%, respectively. The mean SVS hyperopia value in the SPVAC-F/SVS-F group (2.71 ± 1.50 D) was significantly higher than that of the SPVAC-P/SVS-F group. The mean SVS astigmatism and myopia values were -2.21 diopter (D) ± 1.09 D and -3.40 ± 1.82 D, respectively; they did not differ significantly from that of the SPVAC-P/SVS-F group. Significant differences were observed in the refractive error, amblyopia, and strabismus rates among the 3 groups. Regarding disease determination, no significant difference was observed among participants who passed and failed the SPVAC test, regardless of the outcome of the other test. However, a significant difference was observed between those passing and failing the SVS tests. The SPVAC method used to screen 3-year-old children should be modified to commence at 42 months of age or be replaced with a single Landolt C test. The SVS test is useful for screening younger patients. Furthermore, the SVS test showed that the degree of hyperopia was higher in patients who did not pass the SPVAC test.