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074

The Eye -Q – Diagnostic Tests & Procedures & A – Meaning

QuestionAnswer
distance visual acuity measure of the ability to see the details and shape of identifiable objects from a specified distance, usually from 20 feet (6 meters); normal distance visual acuity is 20/20 (6/6)
fluorescein angiography visualization and photography of retinal and choroidal vessels made as fluorescein dye, which is injected into a vein, circulates through the eye
ophthalmoscopy use of an ophthalmoscope to view the interior of the eye
slit lamp biomicroscopy use of a tabletop microscope used to examine the eye, especially the cornea, lens, fluids, and membranes
sonography use of high-frequency sound waves to detect pathology within the eye (e.g., foreign bodies and detached retina)
tonometry use of a tonometer to measure intraocular pressure, which is elevated in glaucoma
Q – Operative terms & A – Meaning
blepharoplasty surgical repair of an eyelid
cataract extraction excision of a cloudy lens from the eye
cryoretinopexy use of intense cold to seal a hole or tear in the retina; used to treat retinal detachment
dacryocystectomy excision of a lacrimal sac
enucleation excision of an eyeball
iridectomy excision of a portion of iris tissue
iridotomy incision into the iris (usually with a laser) to allow drainage of aqueous humor from the posterior to anterior chamber; used to treat a type of glaucoma
keratoplasty corneal transplantation; replacement of a diseased or scarred cornea with a healthy one from a matched donor
laser surgery use of a laser to make incisions or destroy tissues; used to create fluid passages or obliterate tumors, aneurysms, etc.
laser-assisted in situ a technique using the excimer laser to reshape the surface of the cornea to correct refractive error (e.g., myopia, hyperopia, and astigmatism) (smileusis = carving)
intraocular lens (IOL) implant implantation of an artificial lens to replace a defective natural lens (e.g., after cataract extraction)
phacoemulsification use of ultrasound to shatter and break up a cataract, with aspiration and removal
scleral buckling surgery to treat retinal detachment by placing a band of silicone around the sclera to cinch it toward the middle of the eye and relieve pull on the retina; often combined with other techniques to seal retinal tears (e.g., cryoretinopexy)
Created by: MT student1