Eye exam

Question 1

What are methods of eye exam?

Answer 1

distant exam
palpatin
vision assessments
sTT
direct exam of adnexa and anterior segment
stain
pressure
dilate pupils
lens and fundic exam

Question 2

What do distant exams do?

Answer 2

observe behavior
facial/ocular symmetry

Question 3

What are the vision assessments?

Answer 3

menace response
palpebral reflex
pupillary light reflexes
dazzle relfex

Question 4

What does direct examination of the adnexa require?

Answer 4

bright focal light close to eye
normal anterior chamber is clear

Question 5

What is involved with a normal lens exam?

Answer 5

normal is clear
can see with slit lamp
use direct illumination and retroillumination
tapedum highlight opacities

Question 6

What is involved wiht evaluating the fundus?

Answer 6

sit at eye level with pt arms length away, dim light, light held steady at line of sight
indirect image will be upside down and backwards
must dilate pupil to see

Question 7

What can an opthalmascope see?

Answer 7

posterior chamber ( tapetum, optic nerve, retinal vessels, fundus
anterior chamber up close, lens opacities

Question 8

What is horse vision like?

Answer 8

have almost 360 view b/c wide monocular field of view
eyes on side of head

Question 9

What is dog vision like?

Answer 9

have rod dominant eyes: better night vision and movement detection
have poor acuity (optic factors or retina makeup ie few cones) and color sight
dichromatic (R-G) color blind
20/70 vision
wider field of view

Question 10

What is cat vision like?

Answer 10

see better at night b/c rod dominant and tapetum lucidum
can reflect 130x more light than humans