Ch 10/11 Flashcards
Blephar/o
Eyelid
Core/o
Pupil
Cycl/o
Ciliary muscle
Dacry/o
Tear or duct
Dipl/o
Double
Glauc/o
Gray
Kerat/o
Cornea
Nyctal/o
Night
Papill/o
Optic disk
Phac/o
Lens
Presby/o
Old age
Uve/o
Vascular
Vitre/o
Glassy
-opia
Vision
-tropia
To turn
Three layers of eye
Sclera- outermost, white if eye, anterior is cornea
Cornea- clear, bends light rays
Choroid- middle, blood
Iris
Part of choroid, colored portion, smooth muscle that changes size of pupil
Pupil
Part of choroid, opening in center, allows light to enter eyeball
Lens
Behind iris, attached to ciliary body
Ciliary body
Pulls on edge of lens, changes shape of lens so it can focus on retina
Ambly/o
Dull or dim
Retina
3rd layer, contains sensory receptor cells that detect light rays
Rods
Part of retina, active in dim light, see gray tones
Cones
Part of retina, active only in bright light, color vision
Macula lutea
Are of retina where image forms
Fovea centralis
Depression in center or macula lutea with high number of cones and point of clearest vision
Optic disk
Point where optic nerve leaves eyeball