NURS 651 EXAM 2 (MARYVILLE)

NURS 651 EXAM 2 (MARYVILLE)
AstigmAtism - CORRECT ANSWER -defective curvAture of the corneA or lens of the eye
vision is blurry both dose up And fAr AwAy



nystAgmus - CORRECT ANSWER -InvoluntAry hythmic movements of one or both eyes



ClAsses of nystAgmus - CORRECT ANSWER --CongentiAl- 6 weeks-3 months

-Acquired- Concerning!



CAuses of Acquired nystAgmus - CORRECT ANSWER -Tumors, Albinism, CNS AbnormAlities,
eAr trAumA, post-infection of inner eAr. hydrocephAlus



PremAturity And IVH And drug exposure linked with - CORRECT ANSWER -Acquired
NystAgmus



ClAssificAtion of NystAgmus - CORRECT ANSWER -hyper=up, Hypo=down Exo=outwArd
Eso=inwArd

Frequency, distAnce of eye movements, heAd of neck posturing, how mAny fields of gAze
Affected?



Opsocolus - CORRECT ANSWER -InvoluntAry oscillAtion of eye thAt persists of occurs
beyond the first few weeks of life= pAthologicAl condition



myopiA - CORRECT ANSWER -neArsightedness=distAnt objects blurry

Light from distAnt object focused IN FRONT of RetinA



hyperopiA - CORRECT ANSWER -fArsightedness=close objects Are blurry

VisuAl imAge focused BEHIND retinA

,CAtArActs - CORRECT ANSWER -Cloudy lens. Most commonly cAused by AbnormAl
pupillAry reflex. CongentiAl or Acquired



congenitAl cAtArActs - CORRECT ANSWER -InfAnts should be Able to follow moving objects
by 3 months of Age- Absence of the red reflex.



congenitAl cAtArActs cAuses - CORRECT ANSWER -Trisomy 21, Albinism, fAmily history,
MArfAn, DiAbetes, AtAxiA TelAngiectAsiA, demyelinAting sclerosis, premAturity, nystAgmus,



Infection thAt cAuse cAtArActs - CORRECT ANSWER -congenitAl rubellA, CMV,
toxoplAsmosis,



strAbismus - CORRECT ANSWER -muscle weAkness cAusing crossed eyes



Types of strAbismus - CORRECT ANSWER -esotropiA (eyes turn in) And exotropiA (eyes turn
out),

hypertrophic one eye higher thAn the other



StrAbismus= estropiA cAuses - CORRECT ANSWER -LBW, premAturity, CP, HydrocephAlus,
drug exposure



when is strAbismus most visible - CORRECT ANSWER -when the child is looking At neAr
object



WhAt Age does strAbismus commonly occur? - CORRECT ANSWER -Ages 1-8



-phoriA - CORRECT ANSWER -intermittent deviAtion occurs when one eye is closed, Will
not disrupt everydAy life

, -tropiA - CORRECT ANSWER -constAnt deviAtion. cAnnot keep Alignment on fixAted object.
cover uncover test "common with "tired" eyes

*tropiA is NOT NORMAL And cAn leAd to double vision since the misAligned eye won't
correct itself*



strAbismus defined on video - CORRECT ANSWER -OculAr misAlignment



Intermittent EsotropiA - CORRECT ANSWER -NormAl in Ages 6 months to 4 yeAr when
tired, exposed to bright light or sudden movement from neAr to fAr vision.



S/S persistent squinting, heAd tilting, fAce turning, over pointing, or even nystAgmus -
CORRECT ANSWER -strAbismus



Tests to screen for strAbismus - CORRECT ANSWER -corneAl light reflection, cover-uncover
test, AlternAting cover tests. Asymmetry of light reflex on corneA. Photoscreener.



Test for strAbismus phoriAs - CORRECT ANSWER -AlternAting cover test



test for strAbismus tropiAs - CORRECT ANSWER -cover-uncover test



iritis - CORRECT ANSWER -form of uveitis Affecting structures in the front of the eye



WhAt diseAses Are AssociAted with iritis /uveitis? - CORRECT ANSWER -Crohn's, JIA,
PsoriAtic Arthritis, Reiter syndrome, Ankylosing spondylitis, juvenile spondyloArthropies



WhAt infections cAn cAuse iritis? - CORRECT ANSWER -Syphlilis, TB, sArcoidosis, Lyme
diseAse



ClinicAl findings of iritis - CORRECT ANSWER -Injected sclerA, photophobiA, pAin, blurred
vision, conjunctivitis, sterile corneAl infiltrAtes.