Indian Journal of Ophthalmology

ORIGINAL ARTICLE
Year
: 2014  |  Volume : 62  |  Issue : 3  |  Page : 284--286

Retinal sensitivity in healthy Indians using microperimeter


Laxmi Gella, Muneeswar Gupta Nittala, Rajiv Raman 
 Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, Tamil Nadu, India

Correspondence Address:
Rajiv Raman
Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, 18, College Road, Chennai - 600 006, Tamil Nadu
India

Aims: To establish the retinal sensitivity values in healthy Indians using microperimeter. Materials and Methods: In this prospective study, 144 healthy volunteers were included. All the participants underwent a comprehensive ophthalmic examination including contrast sensitivity. Microperimetry was performed in the central 20° of the macula using 76 stimulus points to assess the retinal sensitivity, and the fixation characteristics in the study population were assessed. Results: The mean age of the study sample was 43.08 ± 10.85 years (range: 25-69). Mean retinal sensitivity was 18.26 ± 0.99 dB. Males had significantly increased retinal sensitivity (18.34 vs. 18.17 dB, P = 0.03). The linear regression analysis revealed a 0.04 dB per year age-related decline in mean retinal sensitivity. Contrast sensitivity was significantly correlated with the mean retinal sensitivity (r = 0.432, P < 0.001). Fixation stability in the central 2° and 4° were 69% and 89%, respectively. Conclusion: Microperimeter is an ideal tool to assess the retinal sensitivity and the fixation behavior. These normative values could help in drawing a meaningful conclusion in various retinal pathologies.


How to cite this article:
Gella L, Nittala MG, Raman R. Retinal sensitivity in healthy Indians using microperimeter.Indian J Ophthalmol 2014;62:284-286


How to cite this URL:
Gella L, Nittala MG, Raman R. Retinal sensitivity in healthy Indians using microperimeter. Indian J Ophthalmol [serial online] 2014 [cited 2021 Jan 25 ];62:284-286
Available from: https://www.ijo.in/article.asp?issn=0301-4738;year=2014;volume=62;issue=3;spage=284;epage=286;aulast=Gella;type=0