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Br J Ophthalmol. 2019 Jan;103(1):94-98. doi: 10.1136/bjophthalmol-2017-311566. Epub 2018 Mar 22.

Prevalence of the optic disc anomalies in the adult South Indian population.

Author information

1
Neuroophthalmology Services, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India.
2
Glaucoma Services, Sankara Nethralaya,Medical Research Foundation, Chennai, Tamil Nadu, India.
3
Elite School of Optometry, Chennai, Tamil Nadu, India.

Abstract

PURPOSE:

To determine the prevalence of congenitally abnormal disc (all anomalies) in an adult population in southern India.

METHODS:

Subjects aged ≥40 years (n=6013) underwent a complete ophthalmic examination. Optic disc anomalies were diagnosed according to the definitions given in the article.

RESULTS:

Optic disc anomalies were found in 81 eyes of 66 (1.1%, 95% CIs 0.00834 to 0.01361) patients. The prevalence of each anomaly in the descending order was peripapillary myelinated nerve fibre (0.28%), epipapillary glial tissue on the optic disc (0.28%), peripapillary vascular loops (0.16%), tilted disc (0.09%), optic disc coloboma (0.08%), optic nerve hypoplasia (0.04%), optic disc pit (0.04%), optic disc pigmentation (0.03%), optic nerve head drusen (0.03%), Bergmeister's papilla (0.03%), optic disc pit and coloboma (0.01%).

CONCLUSIONS:

The prevalence of optic disc anomalies is 1.1% in the adult South Indian population.

KEYWORDS:

epidemiology; optic nerve

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