A&P
The pupils will 1. dialate and 2. constrict, what function of the NS causes them to do this
1. Dialate - sympathetic NS
2. Constrict - parasympathetic NS
The patient states, "My eye has just been in excruciating pain and I see so random floating things since this morning", this is a sign of a...
MEDICAL EMERGENCY
NAME:
1. What is eye weakness in a single eye (the brain favors one eye over the other)
2. Drooping of the upper eyelid
1. amblyopia (aka lazy eye)
2. Ptosis
newborns have intact ________ vision
peripheral
this is a normal change associated with age in which near vision is decreased and the lens becomes hard and not as flexible anymore
presbyopia
This structure in the inner layer of the eye receives and transmits images into what we will see
macula
When collecting objective data, as the nurse, you will start the eye assessment with:
inspection
NAME:
1. Two differently sized pupils
2. Constricted pupils
3. Dialated pupils
1. Anasicoria
2. Miosis
3. Mydriasis
*note: a congenital factor may include an irregularly shaped iris-hole or a defect of the iris*
describe the child's sight ability up until the age of around 7-8
far sighted
1. what is considered legally blind, and how is this measured?
2. What is myopia considered?
1. 20/200, using the snellen eye chart
2. 20/30 (this is when distance vision starts to decrease)
Which eye muscle and Cranial Nerve control the eye to move in a downward in direction
Ex: pt's right eye moves ↘
The superior oblique muscle and CN IV
misalignment of the eyes is known as 1._________,
when the eye is deviated inward this is 2.__________, and when the eye is deviated OUTward this Is known as 3.___________.
1.strabismus, 2. esotropia, 3.exotropia
The eyelids fall outward
ectropion
*Note: entropian = eyelids inward*
seen in older adults, this is a clouding of the eye around their limbus, this is not considered abnormal
arcus senellus
How do you test colored vision?
Ishihara Test
The pupils will __________ and ____________ when testing for accommodation.
constrict and converge
NAME:
1. double vision
2. sensitivity to light
1. diplopia
2. photophobia
The pt's pupils are unequal in size, what is a possible underlying issue to suspect?
Incresed ICP
True or false, in newborns, we may see pupils of different sizes?
True!
The confrontation test measures what?
peripheral vision
This structure converts the incoming light rays into nerve impulses
retina
the expected finding and color of the eye is "china white" if the pt's eye is yellow, this can be a sign of
jaundice
The examinter attempts to startle the newborn with a scary bright red bear, but the newborn does not become startled and noes not seem effected, what does this show signs of
positive moro reflex
Name the following:
1. Lense turns cloudy and opaque
2. d/t increased ocular pressure and gradual loss of peripheral vision
3. Loss of CENTRAL vision, this is the common cause of blindness
1. cataracts
2. glaucoma
3. macular degeneration
In caucasians over the age of 40, what is the leading cause of age-related blindness?
Mostly macular degeneration and cataracs