Which surgical procedure uses cold to remove a cataract?
a. phacoemulsification
b. cryoextraction
c. laser retinal photocoagulation
d. photorefractive keratectomy
b
Explanation:
a. phacoemulsification: is the use of high-frequency sounds waves to break up a cataract
b. cryoextraction: correct
c. laser retinal photocoagulation: is the use of laser to pinpoint scars to stabilize a detached or torn retina
d. photorefractive keratectomy: is the use of a laser to reshape the cornea
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