Eye and Ear Disorders
Terms
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- Occular Support System
- 6 occular muscles allow for movement of each eye through the six cardinal gazes
- Eyelids
- Elastic skin folds which distribute tears and protect anterior eye
- Three layers of eyeball
- The outermost supporting layer, The middle Vascular layer, the innermost neural layer
- The outermost supporting layer consists of
- Conjunctiva, cornea, sclera
- Cornea
- Blends and directs rays of light to the retina
- The middle vascular layer consists of ?
- The iris, the ciliary body, the choroid
- The innermost neural layer consist of ?
- the retina
- Retina
- Thin simitransparent layer of nerve tissue that forms the innermost lining of the eye
- The center of the retina contains:
- Macula, fovea, point of finest vision
- Fovea
- Area where only cones are present, damage here severely reduces central vision