ICL Patient Information Booklet

Laser Assisted In-Situ Keratomileusis (LASIK): A type of eye surgery that uses a
microkeratome and a laser to improve vision. The microkeratome creates a thin, hinged
flap of tissue on the cornea which is then folded back. The laser shapes the tissue under
the flap and the flap is put back on the eye so the tissue heals.
Lens: Natural crystalline lens in the eye which helps focus light properly into the back of
the eye.
Lens Opacities: A cloudiness of the crystalline lens.
Lens Dislocation: A movement of the lens to an improper position.
Macular Edema: Swelling in the area responsible for fine (reading) vision on the back
surface of the eye (retina).
Macular Hemorrhage: Bleeding in the area responsible for fine (reading) vision on the
back surface of the eye (retina).
Manifest Refraction Spherical Equivalent (MRSE): A routine examination of the eye
to evaluate the amount of refractive error (i.e., amount of nearsightedness; amount of
astigmatism). Information used to prepare eyeglass/contact lens prescriptions.
Microkeratome: A surgical instrument used in LASIK to cut a thin flap of tissue from
the front surface of the eye (cornea) before the laser treatment is applied.
Myopia: A focusing error that results in blurrier vision at distance than near. Myopia is
also called nearsightedness.
Narrow Anterior Chamber Angle: A decrease in the size of the front chamber of the
eye which could block the flow of fluid from inside to outside of the eye resulting in a
raised eye pressure (glaucoma).
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