Outer Layer of the Eye - Edubirdie

University:
The University Of Western Ontario
Course:
ANATCELL 3309 | Mammalian Histology
Academic year:

2022
Views:

253

Pages:

3
Author:

Kyuwon J.

Sclera ● Outer layer of the eye ● Tough tissue ● “White” part of the eye ○ Protective ○ Insertion point for ocular muscle to control movement of the eye Sclera on top Cornea in front of lens Cornea ● Continuity of Sclera ● Different in tissue arrangement ○ Better clarity than Sclera ● 5 layers ○ Corneal epithelium ■ Outermost ■ Protection from debris ■ Regeneration Nerves are present in corneal epithelium. Patients will express pain here. However, ○ Bowman’s layer ■ Acellular ■ Tough collagen layer ■ Does not regenerate ○ Corneal stroma ■ Thickest ■ Collagen+keratocytes ■ Transparency ○ Descemet Membrane ■ Basement membrane ■ Regenerate when damaged ■ Thickens when damaged ○ Corneal endothelium ■ Innermost layer ■ Fluid pump, prevents dehydration ■ Can regenerate but not fully

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