Physiology Of Eye Flashcards
a white fibrous layer that covers the rest of the eyeball
sclera
a hard, transparent surface through which light enters and provides the greatest optical power
Cornea
Outer fibrous (protective) layer
sclera & cornea
Middle vascular (nutritive) layer
Choroid
Inner nervous (sensory) layer
Retina
between the cornea and the iris
Anterior chamber
between the iris and the lens
Posterior chamber
Both anterior & posterior chambers are filled with
Aqueous humor
Behind the lens the rest of the eye cavity ( apart from anterior & posterior chambers) is filled with
vitreous body
The tear film that covers the surface of the eye has 3 layers:
Lipids
Oil glands
Eyelids
Which part of the eye is refractive?
Refractive
secreted by the ciliary epithelium and circulates through the pupil from posterior to anterior chamber
Aqueous humor
Similar in composition to protein-free plasma
Aqueous humor
Aqueous humor Normal volume
125 µL
Controls the pupil
Iris