Eye exam 2 Flashcards
Snellen chart
14” from face
Snellen chart: ask pt
read smallest line from left to right
Snellen chart: 3 or more mistakes
ask pt to read next line higher
Snellen chart: go to next eye
when pt reads line correctly with equal to or less than 2 mistakes
smallest line pt can read without making more than 2 mistakes is pt’s
visual acuity
normal visual acuity
20/20
abnormal visual acuity
anything other than 20/20 vision in either eye
refer to optometrist
Shadow test
stand in front of pt, look straight ahead, hold penlight close to side
start
posterior to level of pt iris slowly brought forward to line up with iris
held 180
assessed both eyes
normal shadow test findings
light on both sides of iris
open angle glaucoma findings
even if both sides of iris lights up
closed angle glaucoma findings
shadow on medial aspect of iris
emergency referral if what during shadow test
+ shadow with other signs/symptoms of closed angle glaucoma
Direct and consensual light reflexes pt holds
hands between eyes to block light
shine light into on pupil
look for direct response