Orientation to Low Vision Aids

1979 ◽  
Vol 73 (5) ◽  
pp. 161-166
Author(s):  
Dennis K. Kelleher
Keyword(s):  
Visual Acuity ◽  
Prognostic Factors ◽  
Low Vision ◽  
Training Sequence ◽  
Low Vision Aids ◽  
Technical Description ◽  
Aids Training

This article orients the reader to numerous aspects of low vision aids, including types of aids, function of aids, training sequence and considerations, a non-technical description of visual acuity, and favorable prognostic factors in using low vision aids. A brief annotated resource list is included.

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.

Prognostic Factors in the Visual Rehabilitation of Aging Patients

1974 ◽  
Vol 68 (3) ◽  
pp. 124-127
Author(s):  
Alfred A. Rosenbloom
Keyword(s):  
Prognostic Factors ◽  
Visual Impairment ◽  
Low Vision ◽  
Emotional Adjustment ◽  
Life Situation ◽  
Visual Rehabilitation ◽  
Low Vision Aids ◽  
Ocular Pathology ◽  
Factors Influencing ◽  
Residual Vision

Of a group of 150 patients, 60 to 89 years of age, 84 percent were successfully using prescribed low vision aids; 16 percent had discontinued their use. The factors influencing success or failure that were investigated include ocular pathology, degree of residual vision, types of prescribed low vision aids, and psychological-emotional adjustment to life and to visual impairment. The study revealed the importance of residual vision, the patient's life situation, and the extent of the training in the use of the low vision aid, to the success of the prescription.

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

Clinical effect of low vision aids

1999 ◽  
Vol 13 (1) ◽  
pp. 52 ◽  
Author(s):  
Y H Ji ◽  
H J Park ◽  
S Y Oh
Keyword(s):  
Clinical Effect ◽  
Low Vision ◽  
Low Vision Aids

CLINICAL CHARACTERISTICS AND RESULTS OF CATARACT SURGERY IN THE SMALL PUPIL EYE BY PHACOEMUSIFICATION

2018 ◽  
pp. 79-82
Author(s):  
Van Minh Pham ◽  
Van Nam Phan ◽  
Thi Thu Nguyen
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Clinical Characteristics ◽  
Low Vision ◽  
Sample Selection ◽  
Posterior Chamber ◽  
Good Visual Acuity ◽  
Before And After ◽  
Grade Ii ◽  
Small Pupil

Objectives: To investigate the clinical characteristics of cataract patients with small pupils and to evaluate the result of cataract surgery on the eye have small pupils by phacotechnique. Subjects and methods: Descriptive study, prospective, uncontrolled interventions. Sample selection. The sample size of 70 patients with 70 eyes of cataracts with small pupils was treated by phaco technique and intraocular lens implant within posterior chamber. Follow up to 3 months. Results: 70 eyes, the percentage of men and women was not different from 54.2% (38 male) compared to 45.8% (32 female). The mean age was 80 ± 8.74, from 58 to 99 years. The disease was mainly found in the age group over 70 years old with over 80% (51.5%). Visual acuity before surgery was very poor under 3m CF (count finger) for 68.6% (48/70). Visual acuity over 1/10 was only a small amount with 2.8% (2 eyes). Pseudoexfoliation was the most common reason complications of mydriasis with 32/70 eyes (45.7%) and 22/70 eyes (31.4%) for age. The preoperative pupilarysizewas mostly small with 63/70 eyes (90.0%), non-dilated pupils (7/70 eyes) (10.0%). Average pupil size was 3.34 mm (2 - 4mm). Iris condition: iris atrophy 20/10 eyes (28.6%), iris synechiae 11/10 (15.7%), irregular iris muscle with 51, 4% and good iris muscle accounted for 48.6%. Grade of cataract: Grade III: 31/70 eyes (44.3%), Grade IV: 32/70 eyes (45.7%), Grade II: 5/70 eyes (7.1%) and V:2/70 eyes (2.9%). Pupil expander technique: OVD injection with 42/70 eyes (60%), using iris hook with 23/70 eyes (32.9%). Pupillary size before and after intervention has changed from 3.7mm to 4.48mm. Conclusions: Iris expander techniques have been shown to have good dilated pupils: 60.0% OVD injection, iris hook was 32.9%, other methods 7.1% One-week visibility of good visual acuity was higher than that of postoperative one day (12.2%) and increased at 1 month and 3 months (20.0%). Very good visual acuity was not available and low vision group was 1.4% after 3 months. Key words: cataract surgery; phacoemusification, small pupil

scholarly journals Epidemiological Findings of Refractive Errors and Amblyopia among the Schoolchildren in Hatta Region of the United Arab Emirates

2021 ◽  
pp. 1-7
Author(s):  
Salam Chettian Kandi ◽  
Hayat Ahmad Khan
Keyword(s):  
Visual Acuity ◽  
Visual Field ◽  
United Arab Emirates ◽  
Refractive Error ◽  
Screening Program ◽  
Low Vision ◽  
Refractive Errors ◽  
Vision Screening ◽  
Screening Programs ◽  
School Based

<b><i>Introduction:</i></b> Uncorrected refractive errors and amblyopia pose a major problem affecting schoolchildren. We had previously observed that many schoolchildren in the Hatta region presented to the ophthalmology clinic with uncorrected refractive errors and amblyopia, which led us to undertake this research. As per the WHO, the term “visual impairment” can be “low vision” or “blindness.” Based on the presenting vision, “low vision” is defined for children who have vision of &#x3c;6/18 to 3/60 or having visual field loss to &#x3c;20° in the better-seeing eye. Children defined to have “blindness” have presenting vision of &#x3c;3/60 or corresponding visual field of &#x3c;10°. <b><i>Purpose:</i></b> To estimate the magnitude of uncorrected refractive errors and amblyopia among the schoolchildren aged 6–19 years and to assess the efficacy of school-based refractive error screening programs in the Hatta region of the United Arab Emirates. <b><i>Methods:</i></b> An epidemiological, cross-sectional, descriptive study was conducted on the entire student population studying in the government schools of the region. Those who failed the Snellen visual acuity chart test and those who were wearing spectacles were evaluated comprehensively by the researcher in the Department of Ophthalmology of the Hatta Hospital. Data were entered in the Refractive Error Study in School Children (RESC) eye examination form recommended by the WHO, and were later transferred to Excel sheets and analyzed by SPSS. <b><i>Results:</i></b> 1,591 students were screened and evaluated from the end of 2016 to mid-2017. About 21.37% (<i>n</i> = 340) had impaired vision with 20.9% (<i>n</i> = 333) refractive errors, of which 58% were uncorrected. Among the refractive error group, 19% (64 subjects) had amblyopia (4% of total students). The incidence of low vision was 9.5% and blindness was 0.38%. Low vision was found to be 9.5% and blindness 0.38%, taking in to account presenting visual acuity rather than best-corrected visual acuity for defining low vision and blindness. <b><i>Conclusion:</i></b> A significant number of students were detected to have uncorrected refractive errors among the vision impaired group (59%, <i>n</i> = 197) despite a school-based vision screening program in place. Seventy-eight percent of the amblyopia cases (<i>n</i> = 50) were found to be in the 11–19 years age group. Noncompliance with optical corrections was the reason for the high number of cases. A rigorous vision screening program and refractive services, complimented with awareness among parents and teachers, are recommended.

scholarly journals Gaze Interactive and Attention Aware Low Vision Aids as Future Smart Glasses

2021 ◽  
Author(s):  
Fiona Bríd Mulvey ◽  
Marek Mikitovic ◽  
Mateusz Sadowski ◽  
Baosheng Hou ◽  
Nils David Rasamoel ◽  
...  
Keyword(s):  
Low Vision ◽  
Low Vision Aids ◽  
Smart Glasses
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