Pseudopterigium

Pseudo- and pseudopterygium are neoplasms of the conjunctiva and cornea, respectively. In ophthalmology, this condition is called in one word - pterygium. Most people understand that this refers to the growth of a small red strip of tissue on the cornea. With prolonged inflammation and advanced cases, folds may form. Pterygium and its variant, pseudopterygia, are more often diagnosed in people over 50 years of age.

**Pterygium** is a slowly ascending conical or crescent-shaped protrusion of the conjunctiva or cornea into the lumen of the eye. The lining of the conjunctiva with pterygium consists of several layers. The top layer retains light-sensitive cells. The inner layer - the cornea - does not contain blood vessels. Its epithelium on the periphery comes close to the surface and consists mainly of goblet cells capable of producing aqueous humor - mucin. In the middle third there is a thin basal layer. The base of the pterygium is represented by a vascular layer consisting of large thin-walled capillaries. The free release of tears is due to the fact that capillaries accompany the lacrimal openings and menisci of the tear film.

Classification of pterygiums. There are several options