Retinal (adjective)

1. Relating to the retina of the eye.
2. Relating to the light-sensitive membrane in the back of the eye that converts light into nerve impulses that are sent to the brain.

Origin:

From the latin word "retina" meaning "net" or "net-like" and refers to the retina of the eye.

Examples:

1. The retinal specialist performed the examination.
2. The retinal detachment was treated with surgery.
3. The retinal pigmented epithelium is a layer of cells that provides nourishment to the retina.
4. Retinal imaging is used to detect diseases such as diabetes and macular degeneration.
5. Retinal prosthesis is a device that can restore vision to people with retinal degeneration.