corneal AGE-RELATED DEGENERATIONS

Arcus senilis
Arcus senilis refers to an annular lipid infiltration of corneal periphery. This is an age-related change occurring bilaterally in 60 percent of patients between
40 and 60 years of age and in nearly all patients over the age of 80. Sometimes, similar changes occur in young persons (arcus juvenilis) which may or may
not be associated with hyperlipidemia. The arcus starts in the superior

corneal ulcer Complications

 Complications of corneal ulcer

1. Toxic iridocyclitis. It is usually associated with cases of purulent corneal ulcer due to absorption of toxins in the anterior chamber.

2. Secondary glaucoma. It occurs due to fibrinous exudates blocking the angle of anterior chamber (inflammatory glaucoma).

3. Descemetocele. Some ulcers caused by virulent organisms extend rapidly up to Descemet's membrane, which gives a