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17.5 Ophthalmology
Medical Procedures of the EYE
Term | Definition |
---|---|
fluorescein angiography | intravenous injection of flourescein (a dye) followed by serial photographs of the retina through dilated pupils. |
ophthalmoscopy | visual examination of the interior of the eye. |
slit lamp microscopy | examination of anterior ocular structures under microscopic magnification. |
visual acuity test | clarity of vision is assessed. |
visual field test | measures the area within which objects are seen when the eyes are fixed,looking straight ahead without movement of the head. |
enucleation | removal of the entire eyeball. |
keratoplasty | surgical repair of the cornea. |
laser photocoagulation | intense, precisely focused light beam (argon laser) creates an inflammatory reaction that seals retinal tears and leaky retinal blood vessels. |
lasik | use of an excimer laser to correct errors of refraction (myopia,hyperopia, and astigmatism). |
phacoemulsification | ultrasonic vibrations break up the lens, which then is aspirated through the ultrasonic probe. |
scleral buckle | suture of a silicone band to the sclera over a detached portionof the retina. |
vitrectomy | removal of the vitreous humor. |