Schwable's ring is seen in which layer of cornea
Bowmann's membrane
Stroma
Descemet's membrane
Substantia propria
Ans. is 'c' i.e., Descemet's membrane Histology of cornea The cornea has five distinct layers (from superficial to deep) : ? Epithelium : - It is the outermost pa of cornea and is composed of stratified squamous non-keratinized epithelial cells. Bowman's membrane : - It is not a true membrane but simply a condensed superficial pa of stroma. destroyed, it does not regenerate. Stroma (Substantia propria) : - This layer constitutes most of the cornea (90% of thickness). It consists of collagen fibrils (lamellae) embedded in hydrated matrix ofproteoglycans. Descemet's membrane : - This layer bounds the stroma posteriorly. In the periphery it appears to end at the anterior limit of trabecular meshwork as Schwahle's ring. Endothelium : - It is a single layer of flat polygnonal cells. The endothelial cells contain 'active-pump' mechanism and is the most impoant layer in maintaining the transparency of cornea.