Indian Journal of Clinical and Experimental Ophthalmology


Photostress test as a predictor of macular dysfunction in patients with asymmetrical Age-related maculopathy


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Author Details: Bindu S, Jyothi PT, Padma B. Prabhu, Sandhya S

Volume : 3

Issue : 1

Online ISSN : 2395-1451

Print ISSN : 2395-1443

Article First Page : 61

Article End Page : 65


Abstract

Background: Age related maculopathy causes irreversible central visual loss in elderly population. Photo stress recovery time and Amsler grid evaluation are the tests used to assess the functional integrity of macula.
Aim of Study: 1. To determine the Photo stress recovery time (PSRT) in patients with asymmetrical age-related macular maculopathy (ARM).
2. To find out the prevalence and the relation between risk factors, visual acuity, Amsler evaluation and photo stress recovery time.
Settings and Design: Hospital based Case series study.
Materials and Methods: Out of the 2104 participants above 50years, 37 patients presented with features of age related maculopathy. The systemic and ocular risk factors of ARM was observed. Relevant clinical examination, photo stress test and amsler grid monitoring was done in all patients.
Statistical analysis was done using SPSS Version 18.
Results: The overall prevalence of age related maculopathy in the study population was 1.76%, and it increases with age. Mean age was 62.84 years ± 7.97. Males were more affected by the disease. Smoking, dyslipidemia, cortical cataract and hyperopia were the most common risk factors. Photo stress recovery time was prolonged in all patients with reduced visual acuity. Even in eyes with good vision it was abnormal in the early stage of the disease before visible change occurred in the macula. Abnormal recovery time was also noted in patients with normal Amsler grid.
Conclusion: PSRT helps in early detection of macular dysfunction in better eye, as well as progression in worse eye in patients with asymmetrical age related maculopathy.

Keywords
: Age related maculopathy-visual acuity- Amsler grid-abnormal PSRT