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ABO REVIEW QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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ABO REVIEW QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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ABO REVIEW QUESTIONS ANDANSWERS WITH SOLUTIONS 2024
Sclera - ANSWER Tough, white outer coat of the eyeball
myopia - ANSWER nearsightedness; the condition in which parallel rays of light are brought into focus in
front of the retina, rather than on it
reflection - ANSWER light that bounces back
refraction - ANSWER when the direction of light changes as it passes from one medium to another(bending
of light)
presbyopia - ANSWER Age of 40
need reading glass crystalline lens diminishes
frame difference - ANSWER the difference betweeen the horizontal and vertical measurement
Ex. 50-45= 5mm
MPD - ANSWER mechanical PD in a finished pair of glasses
the distance between the optic center
measuring PD - ANSWER should sit at 40 cm(16in) from patient
average PD for adults - ANSWER 50mm to 75mm
diplopia - ANSWER double vision
plus lens - ANSWER thick at the center
magnify
, converge
FL in front of lens
minus lens - ANSWER think at the center
minify
diverge
FL behind of lens
astigmatism - ANSWER football shape eye
two different powers
refractive index - ANSWER N= speed of light in air/ speed of light in material
a lens has a front surface power of +2.00D and a back surface power of -8.25. the corrective power is.. -
ANSWER +2.00 ( -8.25 = -6.25D
a -4.00D lens must be decentered ----- to induce 100^D - ANSWER Prism=4 x ?/ 10
4 x 2.5/ 10 = 1.00^D
geometric center - ANSWER point where A&B intersect
dioptric difference between the lenses for the prescribtion of OD +2.00D and OS +.50D would be.. -
ANSWER +1.50 D
lens calipers - ANSWER measures lens thickness
amplitude - ANSWER height or depth of a wave
Optic disc - ANSWER region at the back of the eye where the optic nerve meets the retina
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