Low Vision Aids: Visual Outcomes and Barriers in Children with Low Vision

Venkataramanan, V.R.

doi:10.7869/djo.413

Cited by 3 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most common LVDs prescribed for near were a 4× dome magnifier (20%), followed by a 6× cut-away stand magnifier (4.6%). [ 21 ] Since most of the population were school-going students, both the above-mentioned devices were preferred as they were easy to handle and affordable. There was a significant improvement in the near visual acuity with the help of electronic portable devices such as Niki CCTV (6.3%).…”

Section: Discussionmentioning

confidence: 99%

Prescribing patterns of low vision devices in patients with cone-related dystrophies

Mahalingam

Gopalakrishnan

Parasuraman

et al. 2022

Indian Journal of Ophthalmology

View full text Add to dashboard Cite

Purpose: The aim of this study was to elucidate the type of low vision devices (LVDs) prescribed for patients with cone dystrophy, cone–rod dystrophy, and rod–cone dystrophy and to analyze the visual improvement with the devices. Methods: A retrospective review of 300 electronic medical records of patients with cone dystrophy, cone–rod dystrophy, and rod–cone dystrophy referred to the low vision care (LVC) clinic for the first time between 2014 and 2016 at a tertiary eye care center was done. Collected data included the demographic profile of patients, details of LVDs, and best-corrected vision. Results: Out of 300 patients, 62.6% ( n = 188) were male and 37.3% ( n = 112) were female. Of the cases, 50% ( n = 150) had cone–rod dystrophy, 45% ( n = 135) had cone dystrophy, and 5% ( n = 15) had rod–cone dystrophy. The most commonly prescribed LVD was SEE-TV binocular telescope ( n = 6, 2.0%) for distance and dome magnifier ( n = 60, 20%) for near. ET-40 dark grey tint (20.6%) was preferred for managing photophobia. There was a statistically significant difference in both distance and near visual acuities with LVDs ( P < 0.05) in all categories, except rod–cone dystrophy. Conclusion: Early diagnosis with appropriate prescription of LVDs including tints helps in achieving good quality of vision in patients with cone-related dystrophies.

show abstract

Section: Discussionmentioning

confidence: 99%

Prescribing patterns of low vision devices in patients with cone-related dystrophies

Mahalingam

Gopalakrishnan

Parasuraman

et al. 2022

Indian Journal of Ophthalmology

View full text Add to dashboard Cite

show abstract

Does the optimal level of illumination improve both visual functions and visual comfort in schoolchildren with low vision?

Yong,

Mohammed,

Mohamad Fadzil

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

Lighting modification is commonly performed by optometrists and occupational therapists to enhance visibility and visual comfort among schoolchildren with low vision. The purpose of this study is to determine the optimal illumination level for visual function and visual comfort of schoolchildren with low vision and the relationship between them. A cross-sectional study was conducted to assess five levels of illumination ranging from 125 lux to 2000 lux to determine the optimal illumination for visual functions and visual comfort in schoolchildren with low vision from a special education school for blind in Malaysia. Purposive sampling was done to recruit forty-two schoolchildren with low vision for this study. Visual functions assessed were visual acuity, measured using the Early Treatment Diabetic Retinopathy Study LogMAR chart at distance and near, contrast sensitivity (CS) measured using the Pelli-Robson chart at distance and the Mars CS chart at near. Reading speed was determined using the Universiti Kebangsaan Malaysia Malay Language Related Word Reading Text test chart. Subjects were asked to rate their visual comfort using a validated questionnaire at the end of each measurement of visual functions and reading speed for the different illumination levels. Visual acuity and contrast sensitivity at distance and near, visual comfort and reading speed improved significantly with increase in illumination levels (p<0.05). However, the interaction between illumination level and level of low vision was not significant (p>0.05). Visual comfort was significantly associated with visual function (p<0.05), while direct association between visual comfort and illumination level was not significant (p>0.05). Optimal illumination for improvement of visual function, reading speed and visual comfort range from 276.67 lux to 701.59 lux. Majority of the schoolchildren with low vision had improved visual function, reading speed and visual comfort with increased illumination. Illumination of at least 600 lux is recommended for maximum visual functioning and visual comfort of schoolchildren with low vision.

show abstract

Assessment of visual impairment and need of rehabilitation services for children attending schools for blind in an urban city of North India

Phulke,

Duggal,

Sandhu

et al. 2024

Journal of Family Medicine and Primary Care

View full text Add to dashboard Cite

Background/Aims: By understanding the prevalence and causes of childhood blindness, stakeholders can work toward comprehensive strategies that encompass prevention, treatment, rehabilitation, and support, ultimately improving the quality of life for affected children. The information about the pattern and causes of childhood blindness in Northern Indian states is limited, it highlights the need for further research and data collection to better understand and address the specific challenges in this region. Therefore, the present cross-sectional study was planned to ascertain the different causes and patterns of childhood blindness and to understand the barriers to the use of LVAs and its compliance among the students attending schools for the blind in a North Indian State. Study Design and Setting: Students from two schools for blind were examined in Chandigarh and its vicinity in North India. The different causes of severe visual impairment/blindness were classified as per the World Health Organization/Prevention of Blindness standard recording form. Results: A total of 89 students attending schools for the blind were examined. The mean age was 13.10 years (range = 4–16 years). Male, female ratio was 3.3:1. The major causes of blindness were congenital anomalies (whole globe anomalies 37.08%), followed by retinal conditions (16.7 = 8%), undetermined/other (12.3), and lenticular conditions (112%). More than one-third of children (34.8%) were blind due to avoidable causes of blindness. Conclusion: The current study data append on the existing national available data about childhood blindness in India. Though the sample size of the current is comparatively low, observed different results as compared to previously published reports from other regions, emphasize the strengthening of pediatric ophthalmology services as well as of low vision services in this particular region of North India.

show abstract

Low Vision Aids: Visual Outcomes and Barriers in Children with Low Vision

Cited by 3 publications

References 8 publications

Prescribing patterns of low vision devices in patients with cone-related dystrophies

Prescribing patterns of low vision devices in patients with cone-related dystrophies

Does the optimal level of illumination improve both visual functions and visual comfort in schoolchildren with low vision?

Assessment of visual impairment and need of rehabilitation services for children attending schools for blind in an urban city of North India

Contact Info

Product

Resources

About