Assessment jof jthe jquality jof jthe jperipheral jcurves j(blends jof ja jrigid jcontact
jlens) jis jachieved jby jthe juse jof jthe-
a. jprofile janalyzer
b. jshadow jgraph
c. jkeratometer
d. jburton jlight j- jANSWER✓✓-a. jprofile janalyzer
Contact jlens jpower jshould jbe jspecified jin-
a. jback jvertex jpower
b. jsphero-cylinder jpower
c. jpower jin jsitu
d. jposterier japical jradius j- jANSWER✓✓-a. jback jvertex jpower
The jslit-lamp jillumination jthat jgives jan joverall jview jof jthe jcornea jbut jlimits jdetail
jis-
a. jsclerotic jscatter
b. jdiffuse
c. jspecular jreflection
d. joscilatory j- jANSWER✓✓-b. jdiffuse
When ja jkeratometric jmiers jreflected joff ja jsoft jcontact jlens jare jonly jclear jwhen
jthe jwearer jblinks, jthe jlens jfit jis jtoo-
a. jsmall
b. jlarge
c. jsteep
d. jflat j- jANSWER✓✓-c. jsteep
Transient jkeratometric jmier jdistortion jis jusually jdue jto-
a. jpre-ocular jtear jfilm jabnormalities
b. jprolonged jrigid jlens jwear
c. jprolonged jsoft jlens jwear
d. jirregular jcorneal jastigmatism j- jANSWER✓✓-a. jpre-ocular jtear jfilm
jabnormalities
Epithelial jedema jwhich jmanifests jitself jclinically jas jcentral jcorneal jhaze, jis
jverified jby jthe jslit jlamp jusing jsclerotic jscatter jillumination. jWhat jspecific
jtechnique jdoes jthe jexaminer juse jto jsee jthis jcondition?
a. jthe jnaked jeye jand jan jangle jbetween jthe jslit jlamp jbeam jand jthe jeye jof j90˚
, b. jthe jblue jcobalt jfilter jof jthe jslit jlamp jand jan jangle jof jabout j45˚
c. jthe jgreen jfilter jof jthe jslit jlamp jwith jhigh jmagnification
d. jhigh jmagnification jand jan jangle jbetween jthe jbeam jand jscope jof j180˚ j-
jANSWER✓✓-a. jthe jnaked jeye jand jan jangle jbetween jthe jslit jlamp jbeam jand jthe
jeye jof j90˚
With ja jrigid jcontact jlens jin jplace ja jflourescein jpattern jshows ja jnarrow jbend
jhorizontally jwih ja jconcentration jof jflourescein jinferiorly jand jsuperiorly junder jthe
jlens. jWhich jone jof jthe jfollowing jtype jof jastigmatism jis jrepresented jby jthis
jpattern?
a. jlenticular jastigmatism
b. jresidual jastigmatism
c. jagainst jthe jrule jastigmatism
d. jwith jthe jrule jastigmatism j- jANSWER✓✓-d. jwith jthe jrule jastigmatism
Refractive jRx j-3.00 j-1.00 jx j170
K's j42.00 j@ j170/43.00 j@ j80
Given jthe jabove jRx jand jK's jhe jfollowing jdiagnostic jtoric jsoft jlens jwas jused:
B.C. j8.8
Power j-3.00 j-1.00 jx j180
During jdianostic jevalutation, jthe jabove jlens jrotated j10 jclockwise. jThe jlens
jordered jshould jhave jan jaxis jof:
a. j10
b. j180
c. j170
d. j160 j- jANSWER✓✓-b. j180
Given jthe jsame jcircumstances jfrom jthe jabove jquestion, jonce jthe jcorrectly
jordered jlens jhas jbeen jdispensed, jthe jrotational jmarks jshould jsettle jat j_______.
a. j6 jo jclock
b. j10 jclockwise jrotation
c. j10 jcounter jclockwise jrotation
d. jnone jof jthe jabove j- jANSWER✓✓-b. j10 jclockwise jrotation
An jinstrument jthat jallows jsimultaneous jverification jof jlens jdiameter, joptic jzone
jwidth, jand jperipheral jcurve jwidth jis:
a. jmeasuring jmagnifier
b. jophthalmometer
c. jprofile janalyzer
d. jradiuscope j- jANSWER✓✓-a. jmeasuring jmagnifier
(the jbook jsays jd. jradiuscope)
The jinstrument jused jfor jmagnification jof jthe jedge jof ja jrigid jCL jis ja j_______.
a. jradiuscope
b. jshadowgraph
c. jprofile janalysis
d. jkeratometer j- jANSWER✓✓-b. jshadowgraph
Mary jis jwearing jin jher jright jeye jRGP jlens jwith ja jbase jcurve jof j43.50 jand ja
jpower jof j+2.75. jThe jdoctor jrefracts j-0.75 jsphere jover jthis jlens. jIf jyou jwish jto
jorder jher ja jnew jlens jwith ja jcurve jof j43.00, jwhat jwill jthe jnew jpower jbe?
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