glossary

In the human eye the term fovea (or fovea centralis) is the “pit” in the retina that allows for maximum acuity of vision. The human fovea has a diameter of about 1.0 mm with a high concentration of cone photoreceptors. The centre of the retina, the area of greatest visual acuity. Small depression in the central part of the macula located close to the optical axis of the eye. Central area in the macula that produces the sharpest focus. Contains a high concentration of cones which aid in clear central vision.

A laser burn in the fovea, which can occur as an adverse event during retinal laser treatment.

Complete color deficiency affecting the ability to see the color green. There are three possible color vision deficits: red (protan), green (deutan), and blue (tritan). The suffixes ?omaly and ?opia indicate partial and complete color vision deficits, respectively. Therefore, a person who has deuteranopia has a complete green color deficit.