Ocular Surgery Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
ptosis repair
Surgical correction of drooping upper eyelid to improve vision and cosmetic appearance.
hypotony
Abnormally low intraocular pressure, typically below 6-8 mmHg.
intravitreal injection
Direct injection of medication into the vitreous cavity of the eye for treating retinal diseases.
IOL
Artificial lens implanted in the eye to replace the natural crystalline lens or correct refractive errors.
iridodialysis
Separation or tear of the iris from its root at the ciliary body, usually due to trauma.
iridodonesis
Trembling or shimmering movement of the iris when the eye moves, typically due to lack of lens support.
iridotomy
Creation of a hole in the iris to relieve pupillary block or angle closure.
Iris prolapse
Protrusion of iris tissue through a corneal or scleral wound, requiring immediate surgical intervention.
keratometry
The measurement of corneal curvature, essential for calculating intraocular lens power and assessing astigmatism.
keratoplasty
Surgical transplantation of corneal tissue to restore vision or structural integrity.
LASIK
Laser eye surgery that reshapes the cornea to correct refractive errors.
limbus
Junction between the cornea and sclera, important for surgical anatomy and stem cells.
Macular hole
Full-thickness defect in the neurosensory retina at the fovea, causing central vision loss.
Malpositioned IOL
Intraocular lens displacement from its intended location within the capsular bag or ciliary sulcus.
Microincision cataract surgery
Cataract surgical technique using incisions smaller than 2.2mm to reduce induced astigmatism and promote faster healing.
miotic
Medication that constricts the pupil by stimulating parasympathetic pathways.
mydriatic
A pharmacological agent that dilates the pupil by paralyzing the iris sphincter muscle.
OCT
Optical Coherence Tomography, a non-invasive imaging technique providing cross-sectional views of retinal and anterior s...
OCT-A
Optical coherence tomography angiography, a non-invasive imaging technique for visualizing retinal and choroidal blood f...
pachymetry
Measurement of corneal thickness, crucial for glaucoma assessment and refractive surgery planning.
pars plana
The flat, non-ciliated portion of the ciliary body located between the pars plicata and the peripheral retina.
peribulbar block
Regional anesthesia technique injecting anesthetic agents around but not within the muscle cone of the orbit.
phacoanesthesia
Anesthetic techniques specifically designed for cataract surgery procedures.
Phacodonesis
Tremulous movement of the crystalline lens due to weakened or torn zonular support fibers.
phacoemulsification
Surgical technique for cataract removal using ultrasonic energy to fragment the lens.