Ch. 2 Anatomy & Physiology
About this set
Created by:
SarahKat88 on August 30, 2011
Subjects:
ophthalmic medical assisting, ophthalmology
Description:
*unfinished
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19 terms
Terms | Definitions |
|---|---|
 Amblyopia | -amblys "dulled" ops "eye" -reduction in vision due to abnormal visual experience in early childhood -most commonly caused by strabismus & asymmetric refractive error |
| Strabismus | Misaligned vision. Fovea may not be focused on the same object leading to diplopia. |
| Lateral rectus | Abducts, turn out |
| Medial rectus | Adducts, turns in |
| Blowout fracture | Fraxture in the floor of the orbit. |
| Orbit | Holds the globe. |
| Lens | immediately behind the iris, 40% of focusing power. |
| Adnexa | Structures that protect & support globe. |
| Cornea | Clear membrane ot front of globe, 60% of focusing power |
| Iris | Controls amount of light that enters the eye |
| Superior rectus | Turns up |
| Inferior rectus | Turns down |
| Optic nerve | Carries electrical messages from retina to brain |
| Retina | inner lining of the back of the eye consisting of light sensitive cells which convert images to electrical impulses |
| Vitreous | Jelly-like substance that fills eye behind lens. Helps keep the shape of the globe. |
| Globe | The Eyeball |
| Superior oblique | Intorsion, down & in |
| Inferior oblique | Extorsion, up & out |
| Pupil | opening in iris that allows light to enter eye |
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