Thursday, 8-4-Eye Examination Lab Flashcards
Confrontation examination is used to assess ___
Visual field
Amblyopia is ___
Lazy eye with permanently reduced visual acuity
__ is ocular ataxia or rhythmical oscillation of the eyes
Nystagmus
__ is associated with turning head-implications in evaluation of labyrinth/vestibular or CNS function
Nystagmus
Caloric reflex test or vestibular caloric reflex stimulation
__: near point constriction of pupil
Convergence
___: unequal size of pupils
Anisocoria
During the fundoscopic exam, the red reflex is the ___
During the fundoscopic exam, what are the structures of the posterior chamber that you are looking for?
Retina
Optic disc is nasal and inferior, 2 lateral and 2 nasal arterioles, and the macula is temporal
What is the most common organism responsible for bacterial conjunctivitis in adults? Children?
Adults: S aureus
Children: M catarrhalis
Is bacterial conjunctivitis normally uni- or bi-lateral?
Unilateral
Purulent discharge through the day and spread by direct contact
What virus is responsible for viral conjunctivitis?
Adenovirus
Describe viral conjunctivitis:
- spread by direct contact
- initially unilateral but quickly becomes bilateral
- clear discharge and may have follicular appearance on tarsal conjunctiva
- self limiting
How is allergic conjunctivitis distinguished from viral?
Bilateral redness, watery discharge, and itching
May have morning crusting
__ is acute purulent inflammation (sterile or S aureus) and is also known as a stye
Hordeolum
__ is when the Meibomian tear gland becomes obstructed. It is a painless, rubbery, nodular lesion often associated with blepharitis and roasacea
Chalazion
Generally found in eyelids
__ are cholesterol deposits around the eyes. They are benign and hyperlipidemia is present in 50% of adults with them
Xanthelasma
__ is used to identify epithelial defects
Fluorescein stain
What does PERRLA, EOMI stand for?
Pupils equal, round, reactive to light and accommodation, extra-ocular muscles intact
When examining the orbital conjunctiva, you depress the lower eyelid and have the patient look which direction?
Up
When examining the orbital conjunctiva, you raise the upper eyelid and have the pt look which direction?
Down
When examining the orbital conjunctiva, foreign bodies may be removed by ___
Eversion of the upper eyelid
The snellen chart is used to test for ___
Visual acuity