Question | Answer |
Iridectomy | Removing a portion of iris tissue |
Iritis | Inflammation of the iris marked by pain, inflammation, discomfort from light, contraction of the pupil, and disorientation of the iris |
Ishihara test | Colored dots appear as numbers or patterns to individuals who have various types of color vision defects. Used for color color vision evaluation |
Jaeger test | A test for near vision in which lines of reading matter are printed in a series of sizes of type |
Keratectomy | Removal of a portion of the cornea |
Keratitis | Inflammation of the cornea; frequently classifies as to type of inflammation and layer of the cornea affected |
Keratitis sicca | dryness of the cornea |
filamentary keratitis | strands of coiled, superficial corneal epithelium loosely attached to the cornea; when broken free leave small, painful ulcers. Associated with keratonjunctivitis sicca and trachoma |
Keratoconus | A non-inflammatory corneal dystrophy in which the cornea becomes curved or conical in shape |
Keratopathy | a non-inflammatory disease of the cornea |
keratoplasty | corneal transplant operation |
keratomileuisis | refers to any lamellar refractive corneal surgical procedure that reshapes a portion of the corneal stroma to correct refractive errors |
lacrimal gland | almond-shaped structure that produces tears, located at the upper outer region of the orbit, above the eyeball |
lacrimation | production of tears |
lagophthalmos | a condition in which the lids do not completely close |
lamellar keratoplasty | operation in which only the diseased outer layer of the cornea are removed and the healthy donor cornea is sutured on as a replacement |
laser | an instrument that transforms an intense beam of light into heat |
leukoma | dense corneal opacity (a less dense opacity is called a macula; least dense is a nebula) |
limbus | boundary between the cornea and the sclera |