Cornea

Question 1

Physiology of cornea

Answer 1

@Primary physiologic function is to maintain an optically smooth surface and transparent medium -
Protecting intraocular contents of Eye
@ epithelium Descemet’s membrane endothelium are transparent because of uniformity of their reflective indices-transparency of Strama is conferred by special physical arrangement of fibers-relative state of detergescence [Prevention Of stromal swelling] With constant water content of 78% D2; barrier function of epithelium and endothelium plus and the Sillen pump
@ epithelial surface with its microvilli is necessary scaffold for smooth continuous precorneal tear film
@, epithelium is a relatively impermeable membrane to water soluble substances
And effective barrier too many infective agents and it’s The most mitotically Active layer of the cornea turn over approximately once Weekly