retina

Introduction

The innermost of the three tunics of the eyeball.

It consists of three parts:

• pars optica-retinae
• pars ciliaris
• pars iridica retinae.

It contains:

• the photosensitive layer of rods & cones & their neural connections that gather light & convert it into electrical nerve impulses, transmitted through the optic nerve.
• retinal pigment epithelium & its basal lamina called Bruch's membrane, which together maintain the integrity of the barrier between the choroid & the retina

More general terms

• eye structure
• brain structure

Additional terms

• central retinal artery (Zinn artery)
• central retinal vein
• retinal disease
• retinal hemorrhage (RHe)
• retinal pigment epithelium detachment (retinal detachment)
• retinitis pigmentosa (RP)

Components

• stratum moleculare; plexiform layer; molecular layer
• retinal pigment epithelium (RPE)
• macula retinae, macula lutea, macula, area centralis or punctum luteum