Lecture questions Flashcards
1
Q
What is the role of the ciliary body?
A
Secretes aqueso humor
Accomodation
And attachment of zonules
2
Q
What are the components of the uveal tract?
A
Iris - varies size of pupil, when we look at something close up lens convex, pupils becomes smaller and the eyes converge.
Ciliary body
Choroid - nutriition of retina and sclera
It is the most vascular tissue in the body
3
Q
WHat is the difference between light and cones?
A
6 million cones - they are not senesitive to light, high acuity (colour vision), throughout whole retina
120 million rods - low threshold to light, sensitive to movement, no colour, low resolution (at centre of retina), if we see something in our peripheral vision that is our rods working
