Definition Optical coherence tomography angiography (OCTA) is an imaging modality that uses variation (or decorrelation) in the optical coherence tomography (OCT) signal to detect motion in biological tissues. Key Features…
Definition of Episcleritis Inflammation of the connective tissue between the sclera and the conjunctiva. Key Features • Self-limiting. • Less painful than scleritis. • Blanches with topical neosynephrine. • Does…
Definition All unwanted events during or after conventional cataract surgery with potential threat to the normal structure and/or function of the eye. Key Features • Intraoperative complications, depending on incision,…
Definition Vitrectomy is an intraocular surgery during which the vitreous is removed to allow for adjunctive procedures to repair retinal and/or macular pathology or to remove foreign, abnormal, or dislocated…
Definition Secondary cataract, also known as posterior capsule opacification (PCO), is the most common complication after cataract surgery, resulting from migration and proliferation of residual lens epithelial cells (LECs) onto…
Definition Ocular signs and symptoms secondary to severe, chronic arterial hypoperfusion. Key Features • Visual loss. • Blot retinal hemorrhages. • Dilated, beaded retinal veins. • Decreased ocular perfusion pressure….
Definition Closure of retinal breaks by scleral indentation. Key Features • Identification, localization, and treatment of retinal breaks. • Scleral imbrication. Associated Features • Anatomical success rate high—generally 80%–90%. •…
Definition Small incision cataract surgery is the extraction of the lens through a corneal incision designed to be self-sealing. Key Features • The refinement of incision placement and architecture, as…
Definition Objective functional ancillary testing of the retina and/or retinal pigment epithelium (RPE) that records electrical responses based on various stimuli and assists in the diagnosis and management of various…
Definition A normally transparent intraocular structure whose function is to alter the pathway of light that has entered the eye to focus the image on the retina. Key Features •…
