A normal anatomic variation where the scleral lip is visible immediately adjacent to the optic disc margin, sometimes mistaken for a portion of the optic nerve head. The region of the optic nerve head is lighter in appearance (color) than the retina. It comprises of collagenous tissue extending from the sclera to Bruch’s membrane, encircling the choroid. On fundoscopy, it appears as a white rim like the disc margin of the eye.
Also Known As
- Elschnig’s Scleral Ring
- Elschnig’s Ring
- Border Tissue
- The Ring of Elschnig
