It is inverted. Innermost, sensitive layer. The part of ratina which is attached to choroid is pars optica.
The part of retina attached to cilliary body is ora-serreta.
In retina 2 parts are clear - (A) Pigmented layer (B) Neuro-sensory layer.
Pigmented layer is of hexagonal or rectangular cells.
Fusein pigment present adopted to absorb light rays.
From these cells microvilli are given out to engulf extra pigment granules.
Inside it, a layer of rods and cones is present.
Rods are 1150 lakh and cones are 65 lakh.
Rods are mone long, meant to judge abject in dim light in it rodopsin (retinine + opsine or skotoprine) present for it vitamin A (ratinol) is necessary i.e. in defficiency of vit A. night blindness (nyctalopia) is caused.
Rhodopsin is known as visual purple.