KERATOCONUS , KERATOGLOBUS , KERATOCONUS POSTERIOR

KERATOCONUS
Keratoconus (conical cornea) (Fig. 1) is a noninflammatory bilateral (85%) ectatic condition of cornea in its axial part. It usually starts at puberty and progresses slowly.

Etiopathogenesis. It is still not clear. Various theoriesproposed so far label it as developmental condition,degenerative condition, hereditary dystrophy and

FILAMENTARY KERATITIS

It is a type of superficial punctate keratitis, associated with formation of corneal epithelial filaments.

Pathogenesis
Corneal filaments which essentially consist of a tag of elongated epithelium are formed due to aberrant epithelial healing. Therefore, any condition that leads
to focal epithelial erosion may produce filamentary

lacrimal apparatus and Conjunctiva introduction

What is Conjunctiva
Conjunctiva develops from the ectoderm lining the lids and covering the globe .
Conjunctival glands develop as growth of the basal cells of upper conjunctival fornix. Fewer glands
develop from the lower fornix.

The lacrimal apparatus
Lacrimal gland is formed from about 8 cuneiform epithelial buds which grow by the end of 2nd month
of fetal life from the superolateral side of the
conjunctival sac .
Lacrimal sac,