3 Flashcards
Expected acuity for 6mo old with FCPL cards
20/100
Most common cause of spontaneous vitreous hemorrhage in adults
PDR
ARs are most susceptible to overestimation of type of RE
Myopia
Purkinje images
1) front surface of cornea
2) back surface cornea
3) front surface lens
4) back surface lens*
*4 is only concave mirror is back of lens = real inverted
What is used to stain lac sac before DCR
Methylene blue
By convention nystagmus is characterized/named for the which phase
Fast
E.g. COWS: warm water in left ear = fast phase left, slow phase right
Astigmatic clock dial problems
Rule of 30: axis of pts rx is lowest number reported clear x 30
Visuoscopy: L eye, foveal light reflex temporal to fixation
Nasal EF
Embolus from ICA most commonly occludes a BV where
Retina
Which layer of the cornea is primarily affected by pterygium
Bowmans
Pincushion vs barrel distortion
PC: high plus
*Pincushion = Plus
B: high minus
Which layer of the cornea is first to become edematous under hypoxic conditions
Epithelium
Ocular albinism is assoc with
Foveal hypoplasia -> nystagmus
Strabismus
Iris hypopig/TID
Esotropia
(-)iris coloboma
Sheards and Percivals criteria
S: 2/3(D)-1/3(R)
D is phoria
R is compensating fusional vergence reserve
P: 1/3(G)-2/3(L)
Photopic critical clicker fusion frequency
70Hz
Accessory lac glands that produce part of the TF are located
In conj stroma
Obstruction to aqueous outflow in POAG is most likely in the
TM (specifically JXT)
DEM types
1: normal
2: high H, oculomotor
3: high H and V, automaticity
4: combo
50% is average
Horiz = saccades
Vert = automaticity
Gram staining
Positive = purple
-thick peptidoglycan cell wall outside the PM
Negative = red
-thin peptidoglycan that’s surrounded by a thick outer membrane
Localized region of suppression scotoma is most likely in what type of amblyopia
Strabismic
Colobomata do not occur here (2) and why
Cornea
Lens
Derived from surface ectoderm
A deficiency in which cell type incr risk of Candidiasis T lymphs Plasma Eosinophils MPs Basophils
T lymphs
Pts with color deficiency who use red filters will see what as brighter
Reds brighter (absorption shifts toward longer wavelengths)
Most common primary site of tumor that metastasized to eye
Breast (followed by lung)
