St 108 Ophthalmic Surgery

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ABRASION

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A SCRAPING INJURY IN WHICH THE SKIN OR MEMBRANE IS DENUDED.

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AQUEOUS HUMOR

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WATERY, TRANSPARENT LIQUID THAT CIRCULATES THROUGH ANTERIOR CAVITY (ANTERIOR AND POSTERIOR CHAMBERS) OF THE EYE.

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ALPHA-CHYMOTRYPSIN

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USED DURING CATARACT SURGERY TO DISSOLVE THE ZONULES THAT ATTACH TO THE LENS OF THE EYE; INJECTED THROUGH THE IRIS.

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ANESTHETICS

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USED TO PRODUCE THE ABSENCE OF ALL SENSATION; USED LOCALLY OR TOPICALLY.

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ANTI-INFLAMMATORY AGENTS

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USED TO REDUCE INFLAMMATION AND PREVENT EDEMA; INJECTED OR USED TOPICALLY.

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BONY ORBIT

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ROUNDED SOCKET IN THE CRANIUM IN WHICH THE EYEBALL IS PARTIALLY SUNK.

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CALIPER

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USED FOR MAKING PERCISION MEASUREMENTS ON SUCH PROCEDURES AS CORNEAL, MUSCLE, OR EYEBALL SURGERIES.

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CANTHUS

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INNER OR OUTER CORNER OR ANGLE WHERE THE EYE LIDS MEET.

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CONJUNCTIVA

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MUCOUS MEMBRANE WHICH LINES EYELIDS AND COVERS THE ANTERIOR SURFACE OF THE GLOBE.

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CORNEA

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TRANSPARENT PORTION OF THE OUTER LAYER (SCLERA) OF THE EYEBALL.

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CORNEAL SCISSORS

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USED TO CUT THE CORNEA FOR INTRAOCULAR PROCEDURES.

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CRYSTALLINE LENS

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THE PART OF THE EYE WHICH, IN ADDITION TO THE CORNEA, REFRACTS LIGHT RAYS AND FOCUSES THEM ON THE RETINA.

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CYCLODIALYSIS SPATULA

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USED TO CREAT A TRACT BETWEEN THE ANTERIOR CHAMBER AND SUPRACHOROIDAL SPACE TO ALLOW FOR THE ESCAPE OF AQUEOUS HUMOR AND REDUCE INTRAOCULAR PRESSURE IN GLACOMA.

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EXTRAOCULAR

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OUTSIDE THE GLOBE OF THE EYE.

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EXTRINSIC EYE MUSCLES

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MUSCLES CONTAINING THE EYEBALL TO THE ORBIT CAVITY.

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EYE SPECULUM

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USED TO RETRACT OPEN THE EYELIDS FOR INTRAOCULAR PROCEDURES SUCH AS CATARACT EXTRACTION.

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FLOURESCEIN SODIUM

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USED TO STAIN THE CORNEA FOR DETECTING CORNEAL ABRASIONS AND FOREIGN BODIES; SWABBED ON SURFACE OF THE EYE.

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FORCEPS, SPECIALIZED

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USED TO GRASP DELICATE EYE TISSUE; NAME OF FORCEPS TYPICALLY INDICATES TYPE OF TISSUE TO BE GRASPED.

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GLOBE

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EYEBALL

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HYALURONIDASE

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USED AS AN ADJUNCT TO INCREASE ABSORPTION AND DISPERSION OF THE ANESTHETIC AGENT; INJECTED.

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IRIS

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COLORED MEMBRANE OF THE EYE WHICH SEPERATES THE ANTERIOR AND POSTERIOR CHAMBERS; CONTRACTS AND DILATES TO REGULATE ENTRANCE OF LIGHT RAYS.

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IRIS HOOK

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USED TO RETRACT AND MANIPULATE THE IRIS ON INTRAOCULAR PROCEDURES SUCH AS CATARACT EXTRACTION.

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IRRIGANTS

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USED TO IRRIGATE ANTERIOR CHAMBER, TO KEEP CORNEA AND EYE TISSUE MOIST, AND TO SOAK AND RINSE INTRAOCULAR LENSES.

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LACRIMAL GLANDS AND DUCTS

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SYSTEMS WHICH SECRETES AND CONDUCTS TEARS.

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LENS LOOP

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USED TO POSTION THE LENS IN CATARACT EXTRACTION WITH INTRAOCULAR LENS IMPLANT.

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LIMBIS

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THE EDGE OF THE CORNEA WHERE IT UNITES WITH THE SCLERA.

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MARKERS

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USED TO MARK INCISIONS, OPTIC ZONES, ASTIGMATISM, RADIAL, OR CORNEA LINES.

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MIOTICS

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USED TO CONSTRICT THE PUPIL TO REDUCE INTRAOCULAR PRESSURE; ALSO USED TO HELP PREVENT LOSS OF VITREOUS HUMOR IN CATARACT SURGERY; DROP FORM.

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MUSCLE HOOK

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USED TO RETRACT EXTRINSIC EYE MUSCLES (RECTUS AND OBLIQUE) IN PROCEDURES TO CORRECT STRABISMUS; ALSO USED ON ENUCLEATION.

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MYDRIATICS / CYCLOPLEGICS

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USED TO DILATE THE PUPIL; DROP FORM.

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MYOPIA

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LIGHT RAYS COME TO A FOCUS IN FRONT OF THE RETINA; NEARSIGHTEDNESS.

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NEEDLEHOLDER

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USED TO SUTURE DELICATE EYE TISSUE.

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OPTIC NERVE

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SECOND CRANIAL NERVE WITH SPECIAL SENSE OF SIGHT WHICH TRANSMITS IMPULSES TO THE OCCIPITAL REGION OF THE BRAIN CONCERNED WITH VISION.

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POSTERIOR CHAMBER

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SPACE BETWEEN IRIS AND LENS WHICH IS FILLED WITH AQUEOUS HUMOR.

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RETINA

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INNERMOST, INCOMPLETE COAT OF THE EYEBALL WHICH RECEIVES IMAGES FORMED BY THE LENS.

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SENSORY RECEPRORS

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RODS AND CONES IN THE RETINAL LAYER WHICH ARE STIMULATED BY LIGHT RAYS TO CONDUCT NERVE IMPULSES TO THE BRAIN VIA THE OPTIC NERVE.

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VASOCONSTRICTORS

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USED TO PROLONG DURATION OF LOCAL ANESTHETIC AND TO DECREASE BLEEDING; INJECTED AND TOPICAL.

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VITREOUS HUMOR

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CLEAR, JELLY-LIKE FLUID IN THE POSTERIOR CAVITY OF THE EYE WHICH FILLS THE VITEROUS BODY.

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ZONULES

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LIGAMENTS RADIATING FROM THE CILIARY BODY TO THE LENS, HOLDING THE LENS IN PLACE.