"Scleras" is the plural form of the word "sclera," which refers to the outermost layer of the eye. The spelling of "scleras" follows the general rule in English for forming plurals by adding "-s." The IPA phonetic transcription for "scleras" is /ˈsklɪrəz/, with the stress on the first syllable. The phonetic transcription for "sclera" is /ˈsklɪərə/, with the stress on the second syllable. Knowing the phonetic transcription of a word can help with proper pronunciation and spelling.
Scleras, also known as sclerae in plural form, are the tough, white, fibrous, and outermost layer of the eyeball that forms the protective, opaque covering over most of the eye's surface. The scleras make up the majority of the eye's visible structure and provide structural support and rigidity to the eye.
Composed primarily of collagen fibers, the main function of the scleras is to maintain the shape and integrity of the eye, protecting it from external damage and maintaining proper eye movement. Its tough and fibrous nature also helps to prevent excessive stretching or deformation of the eye, ensuring that the internal structures remain in their proper position and function optimally.
The scleras are continuous with the cornea, the transparent, dome-shaped front part of the eye that covers the iris and pupil. They extend from the cornea to the optic nerve at the back of the eye. The scleras contain numerous blood vessels that supply oxygen and nutrients to the underlying ocular tissues.
While scleras are typically white, they can have a slight yellowish tinge in some individuals. Any significant change in the color of the scleras, such as yellowing or redness, may indicate an underlying health condition or eye disorder and should be promptly evaluated by a healthcare professional.
The word "scleras" is derived from the Greek word "skleros", meaning hard or tough. In anatomy, "scleras" refers to the white, fibrous outer layer of the eyeball, and it is named so due to its dense and strong nature.