How many membranes does the eyeball have?

The eye is a paired organ, one of the analyzers, which perceives electromagnetic radiation in the light range. With the help of our eyes, our body perceives 90% of information from the surrounding world. The eye consists of three membranes: the outer one, which, in turn, is divided into the sclera (the skeleton of the eye, gives shape to the eyeball, protects it) and the cornea (the main refractive power of the eye, as well as the sclera protects the eye), the middle one is vascular, is responsible for nutrition of the organ of vision and the production of moisture, and internal – the retina. She perceives the image with the help of rods and cones and transmits information to the brain.