which of the following structure of eye is artificial e implanted 1.cornea 2.lens3. retina
4.cornea and lens both
Answers
Answer:
Cornea and Lens can be artificial e implanted.
Option D
Explanation:
The lens is the main retracting body of the eye, transparent and sits in the lens capsule. It is often replaced by artificial lenses in case of cataracts, glaucoma, etc.
The cornea is a transparent part of the sclera situated just before the lens or pupil. It is often grafted in case of corneal opacity, or corneal trauma.
Option (D) cornea and lens
Cornea is a exposed part of tunica fibrosa made up of non keratinised stratified epithelium tissue and non vascular. Cornea transplantation is much easy because it has no blood supply and covered with thick transparent membrane known as conjunctiva.
Lens is transparent and made up of long cells that have no blood supply and it extract its nutrient from aquous fluid of eye.