- White, cup shaped area in the centre of the optic disc
- The size of the cup relative to the disc (cup to disc ratio) increases in glaucoma and is used for its diagnosis
Copyright © 2008-2018 PG Blazer.
Disclaimer : Although every effort is made to ensure the accuracy of the material, the authors will not be held responsible for any inadvertent errors. The information in this site is provided only as a resource for PG entrance aspirants, and is not to be used for any diagnostic or treatment purposes.