Half a billion years ago, the first true eye emerged in Earth’s oceans. Fossils now reveal what that ancient crystal vision could actually see.

Abnormalities in the shape of the sclera, the white of the eye, can cause various complications and lead to blindness. However, techniques to observe the sclera in detail, such as its fibrous ...

Uveitis is inflammation of the eye originating in the uvea, which includes the iris, ciliary body, and the choroid. Anterior uveitis affects the iris; intermediate uveitis affects the ciliary body, ...

This chapter lays the groundwork for the remainder of the report by providing fundamental information about myopia and the eye. Descriptions and definitions of components of the eye are included here ...