scholarly journals Refraction and Low Vision Rehabilitation in Patients with Oculocutaneous Albinism

2020 ◽  
Vol 36 (2) ◽  
Author(s):  
Deniz Altınbay
Keyword(s):  
Visual Acuity ◽  
Observational Study ◽  
Low Vision ◽  
Oculocutaneous Albinism ◽  
Refractive Errors ◽  
Low Vision Aids ◽  
Low Vision Rehabilitation ◽  
Near Visual Acuity ◽  
Vision Rehabilitation ◽  
High Degree

Purpose:  To evaluate the types of refractive errors and compliance of patients of Oculocutaneous Albinism (OCA) to low vision aids. Study Design:  Descriptive observational study. Place and Duration of Study:  Provincial Directorate of Health, Adana City Education and Research Hospital, from 2010 to 2018. Material and Methods:  Seven hundred and fifteen patients attended the hospital between 2010 and 2018 with the complaint of low vision and 31 patients with OCA were included in this study by convenient sampling. Best corrected distance and near visual acuity (VA) was measured along with the complete ocular examination. Patients were classified according to low vision and refraction degrees. High degree near eyeglasses, Galilean and Keplerian telescopes, magnifiers and special filter glasses were used as low vision aids (LVA). Results:  Mean age was 16.45 ± 12.72 years. On admission, mean distance VA was 0.12 ± 0.07 [mean log MAR 0.9], near VA was 1.48M ± 0.74M, astigmatism was 4.02 ± 1.45 diopters (D), and spherical equivalents were 1.54 ± 4.96 D. Hypermetropia was seen more frequently than myopia. Twenty-seven (87%) patients were prescribed telescopes for distance. Near visual acuity increased from 1.4M ± 0.7M to 0.9M ± 0.4M after rehabilitation. There was an increase in distance visual acuity in all patients (p < 0.001). Seventeen (63%) patients bought the telescope, and 15 (55%) patients used the device. The most preferred special filter glasses were 450nm (39%) and 540 nm (25%). Conclusion:  Astigmatism in oculocutaneous albinism was with the rule and the most commonly detected refractive error was hypermetropia. Patients are non-compliant in buying telescopes in which case tablet and computers with special applications for low vision can be better options.

scholarly journals Optometric low vision rehabilitation practice in Norway - public health care

2015 ◽  
Vol 8 (2) ◽  
pp. 11-15
Author(s):  
Bodil Helland ◽  
Vibeke Sundling
Keyword(s):  
Public Health ◽  
Health Care ◽  
Visual Acuity ◽  
Visually Impaired ◽  
Low Vision ◽  
Patient Characteristics ◽  
Public Health Care ◽  
Optical Correction ◽  
Low Vision Rehabilitation ◽  
Vision Rehabilitation

The purpose was to describe the patient characteristics, the prescribing trends and habits among the public health care optometrists who perform low vision rehabilitation in Norway. Data were collected using a questionnaire to gather background details of the optometrist, and a practice registration form to register patient characteristics and information about the low vision device(s) prescribed. Both forms were distributed to 44 public health care optometrists. A total of 30 questionnaires and 20 practice registration forms were returned. This included data for 147 patients with visual impairment. Moderate to severe visual impairment according to The World Health Organization (WHO)’s definition (visual acuity ≤ 6/18) was present in 82 (59%) of the patients. Three out of four (75%) patients did not have sufficient vision for reading. Distance visual acuity was improved with best optical correction in 39 (28%) of the patients compared to the presenting visual acuity. The most frequently prescribed optical devices for near and distance vision were hand magnifiers and filters/tinted lenses respectively. Optometrists play an important role in vision rehabilitation of older people attending the low vision services.  A number of the patients seen in low vision services are referred from non-eye care professionals and achieve improved vision with appropriate optical correction. Others are only mildly visually impaired with adequate optical correction alone. This indicates a potential to use general optometric practice as the first step for vision rehabilitation, as a number of people are only mildly visually impaired with adequate optical correction.

Long term outcomes in dry age-related macular degeneration following low vision rehabilitation interventions

2020 ◽  
pp. 112067212097362
Author(s):  
Yulia Pyatova ◽  
Monica Daibert-Nido ◽  
Samuel N Markowitz
Keyword(s):  
Visual Acuity ◽  
Low Vision ◽  
Age Related Macular Degeneration ◽  
Age Related ◽  
Low Vision Rehabilitation ◽  
Fixation Stability ◽  
Functional Vision ◽  
Vision Rehabilitation ◽  
Distance Vision

Background: Age-related macular degeneration (AMD) is the leading cause of loss of vision in the older age groups. In the absence of a known therapy, low vision rehabilitation aims at preserving residual functional vision at optimal levels. Long term functional outcomes from Low Vision Rehabilitation (LVR) in AMD cases were never scrutinized in the past. This study brings some clarification in this matter. Methods: This is a retrospective case series study including data up to 2 years following the baseline visit. Low Vision Assessments included microperimetry testing and recommendations for low vision devices for distance vision. Outcomes measures selected for this study were best corrected distance visual acuity, fixation stability and preferred retinal locus (PRL) topography and LVR interventions. Results: Data on 17 patients with an average age of 89.2 ± 4.4 years was collected. In those with better vision than 20/400 loss of vision was about 1.4 letter per year as tested with ETDRS charts compared with losses of four letters per year in a population without LVR interventions. Fixation stability continued to deteriorate while PRL eccentricity seemed to remain the same. In about half of cases there was a change in the topographic location of the PRL to a different retinal quadrant. Conclusion: Long term, as expected, changes were noticed in visual acuity, fixation stability and PRL topography. However, it seems that LVR interventions for distance vision help patients retain significantly better functional vision at the 2 years follow up interval when compared to others.

The Closed-Circuit Television Reading System: Fact or Fiasco?

1973 ◽  
Vol 67 (8) ◽  
pp. 346-351 ◽  
Author(s):  
Gerald R. Friedman
Keyword(s):  
Low Vision ◽  
Manual Dexterity ◽  
Closed Circuit ◽  
Latent Image ◽  
Basic Principles ◽  
Present Generation ◽  
Low Vision Rehabilitation ◽  
Vision Rehabilitation ◽  
Reading System ◽  
High Degree

After simply describing the basic principles of the CCTV and its uses in low vision rehabilitation, the author provides a general critique of the system as it is currently being marketed. The unsolved problems include poorly designed and awkwardly placed controls, insufficient stability and flatness of the material to be viewed, the requirement for a high degree of manual dexterity, insufficient servicing capability, lack of provision for adequate training of users, residual or latent image, and high cost. It is concluded that the present generation of devices is insufficient for meeting the needs of low vision patients and that those manufacturers who best solve these problems will be the ones who will survive.

Low Vision Aids: The Effectiveness of Low Vision Rehabilitation

2013 ◽  
Vol 33 (4) ◽  
pp. 981-986
Author(s):  
Elif DEMİRKILINÇ ◽  
Melis PALAMAR ◽  
Önder ÜRETMEN
Keyword(s):  
Low Vision ◽  
Low Vision Aids ◽  
Low Vision Rehabilitation ◽  
Vision Rehabilitation

scholarly journals Role of improved distance and near visual acuity with low vision aids to enhance stereopsis in retinal diseases

2021 ◽  
Vol 69 (7) ◽  
pp. 1867
Author(s):  
PunitaKumari Sodhi ◽  
Akanksha Gautam ◽  
Nandini Sharma ◽  
Kamlesh Anand ◽  
RamneeqSingh Sodhi
Keyword(s):  
Visual Acuity ◽  
Low Vision ◽  
Retinal Diseases ◽  
Low Vision Aids ◽  
Near Visual Acuity
Sign in / Sign up

Export Citation Format

Share Document