Eyes Flashcards
This term is used to describe a unilateral deficit of neuro-visual pathways that favors the visual input from the dominate eye
Ambloypia
The Red reflex should be tested at each visit. What does this test allow the NP to do?
Red reflex should be present and symmetrical. If not, consider: Refractive errors, strabismic deviation, abnormal occular media
Abnormal occular media findings include:
Cataract, corneal abnormalities, retinoblastoma
If a red reflex is not obtainable, a good rule of thumb is:
If the provider can not see into the eye, the patient can not see out.
A mal-alignment of the eyes is called:
Strabismus
Pseudo-strabismus occurs when:
There is an extra-optic cause of the mal-alignment. Such as: a structural visual field obscuration, Ptosis, closely placed eyes, prominent epicanathal folds.
Near-sightedness is called:
Myopia
Far-sightedness is called
Hyperopia
An abnormal curvature of the cornea or an uneven lens is is called:
Astigmatism
Regarding strabismus, what is the difference between tropia and phoria?
Tropia: a consistent or intermittent misalignment of ocular position that the child can not correct with focus or fixation
Phoria: An intermittent misalignment of the of ocular position that the child can correct with focus or fixation
What is the other name for Ptosis? (droopy eyelid)
Blepharoptosis
What is the term used to describe a different refractory error in each eye? (each eye requires different correction)
Anisometropia
A newborn can have strabismus and/or nystagmus until about what age?
5-6 months old
Name four types of nystagmic motions
Horizontal, Vertical, Rotary, Mixed
What is the most common cause of abnormal pupillary reflex?
Cataracts