Corneal opacity occurs when the cornea becomes scarred. This stops light from passing through the cornea to the retina and may cause the cornea to appear white or clouded over. Common causes include Infection, injury, corneal abrasion or scratch or swelling of the eye.

What diseases cause corneal opacities?

Causes of congenital corneal opacities include sclerocornea, trauma, ulcer, mucopolysaccharidosis, Peter's anomaly, congenital hereditary endothelial dystrophy. Mucous membrane pemphigoid: Ocular form of mucous membrane pemphigoid may cause corneal opacity and loss of vision.

What are the types of corneal opacity?

The three grades of the corneal opacities are (i) nebular (ii) macular and (iii) leucoma. The nebular opacities are the slight scar in the cornea which are missed sometimes on clinical examination unless some special care is taken.