sclera

/'skliərə/

Thân thiện

The optometrist points to the sclera on a large eye diagram.

Definition

1. Noun:
   • The white outer layer of the eyeball: The sclera is the dense, fibrous, white tissue that forms the outer protective coat of the eye, continuous with the cornea at the front.

Usage

• The sclera provides structural integrity and protection for the inner parts of the eyeball.
• It is the part of the eye commonly referred to as "the white of the eye."

Examples

• Noun:
  • The doctor examined the patient's sclera for signs of jaundice, which can cause it to appear yellow.
  • An injury to the sclera requires immediate medical attention.

Advanced Usage

• "Scleral" (adjective): Pertaining to the sclera.
  • Scleral icterus is a yellowing of the sclera.
• In medical contexts, conditions like scleritis (inflammation of the sclera) are discussed.

Variants and Related Words

• Scleral (adj): Relating to the sclera.
• Scleritis (n): Inflammation of the sclera.
• Episclera (n): The thin layer of tissue between the conjunctiva and the sclera.

Synonyms

• White of the eye: A common, non-technical term for the visible part of the sclera.

Notes

• The sclera is continuous with the transparent cornea at the front of the eye. Together, they form the eye's outer tunic.
• Its white color comes from the dense collagen fibers that make up its structure.

Học thuật

Noun

1. the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball

Từ đồng nghĩa

• sclerotic coat