$25 words Flashcards
Palpebrae
Eyelids
Orbicularis oculi
Closes eyelid
CN VII
Levator palpebrae superioris
Ovens upper eyelid
CN III
Mueller’s muscle
Opening eyelids (upper/lower) sympathetic ANS
Layers of the eyeball?
Fibrous tunic
Vascular tunic
Nervous tunic
Cornea
Front of eyeball
Sclera
Whites of the eye
Limbus
Where cornea and sclera meet
Iris
Colored part
Pupil
Also innervation
Opening of iris
ANS innervation
- Sphincter - parasympathetic
- Dilator - sympathetic
Bulbar vs palpebral conjunctiva
Bulbar - covers sclera
Palpebral - covers eyelids
Ciliary body
Produces aqueous humor
Cillary muscle
Choroid
Vascular pigmented layer
Between sclera and retina
Fundus
Retina
Macula
Posterior pole of retina
- the HD vision
Optic disc
Where nerve fibers converge and leave eye
- physiologic blind spot
Tear layers
Oil - meibomian glands
Water - lacrimal
Mucin - goblet cells
DVA
Distance visual acuity
NVA
Near visual acuity
cc/sc
cc - With correction
sc - Without correction
Mydriatics
Meds for dilation
Adrenergic stimulating
Stimulate pupillary dilator muscle
Colinergic blocking
Paralyze iris sphincter
Emmetropia
Normal eyeball