Rings in Ophthalmology
- Arcus Senilis:Corneal grey ring shaped degeneration seen in old age.
- Ring Abscess: The hallmark of acanthamoeba Keratitis.
- Kayser-Fleischer’s ring: Copper deposition in descemet’s memberane secondary to wilson’s disease.
- Corneal rust ring: A small, reddish brown, circular Opacity in the Cornea after the removal of an iron foreign body.
- Coats’ white ring: Fine iron deposits in the bowman’s layer remaining after removal of a corneal foreign body.
- Fleisher’s Ring: Visible iron deposition all
around the base of a cone in keratoconus.
- Pseudo-fleischer’s ring: Corneal iron deposition seen in hyperopia.
- Soemmering’s ring:Early opacification of posterior lens capsule in traumatic cataract.
- Vossius’ ring: Pigment deposition on lens in concussion injury to eye.
- Weiss ring: Seen in hypoplasia of the optic disc
- Hoarfrost ring: PEX deposits on anterior lens capsule
- Ring scotoma: Annular visual field defect centered on fixation point
- Capsular tension ring(ctr):Surgical device indicated for the stabilization of weakened, broken, or missing zonules that are suspected or observed during lens extraction.