Eye anatomy — key structures?
Sclera, choroid, cornea, lens, retina, vitreous humor.
Cornea — role?
Refracts incoming light to focus it.
Lens — function?
Adjusts shape for focusing via accommodation.
Retina — contains?
Photoreceptors: rods and cones.
Visual pathway — route?
Retina → optic nerve → chiasm → tract → visual cortex.
Common eye pathologies?
Cataracts, macular degeneration, strabismus, myopia, presbyopia.
Myopia — cause?
Longer axial length or steep cornea.
Presbyopia — feature?
Age-related loss of near focusing ability.
Strabismus — types?
Esotropia (inward), exotropia (outward).
Cataract — effect?
Lens opacification, blurred vision.
DMLA — stands for?
Dry age-related macular degeneration.
Cornea — refractive power?
Provides 70-80% of eye's focusing power.
Accommodation — mechanism?
Ciliary muscles change lens shape for focus.
Fovea — location?
Center of macula, sharpest vision.
Optic disc — also?
Blind spot, where optic nerve exits.
Photoreceptors — types?
Rods (light/dark), cones (color/detail).
Myopia — primary feature?
Difficulty seeing distant objects clearly.
Presbyopia — age?
Typically after age 40.
Strabismus — consequence?
Can cause amblyopia if untreated.
Cataracts — treatment?
Surgical removal, lens replacement.
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1. What is the cornea in eye anatomy?
2. What is the specific function of the cornea in the eye?
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