Definition Secondary deterioration or deposition in the conjunctiva, distinct from dystrophies. Key Features • Common. • Bilateral usually. • Typically does not affect vision. Associated Features • Increased prevalence with…
Definitions • Astigmatic keratotomy (AK) is an incisional procedure in which a diamond blade or a femtosecond laser is used for the correction of astigmatism. • Radial keratotomy (RK) is…
Definition A heterogeneous group of chronic, systemic, inflammatory, subepithelial, blistering diseases. Key Features • Subepithelial bulla formation, rupture, and scarring of mucous membranes and skin. • Female-to-male ratio of 2 : 1….
Definition Refractive surgery is the surgical correction of refractive errors of the eye such as myopia, hyperopia, astigmatism, and presbyopia. Key Features • Established subspecialty of ophthalmology. • Growing variety…
Definition Allergic conjunctivitis is inflammation of the conjunctiva due to an immediate hypersentivity reaction to environmental allergens. Key Features • Itching and redness are common presenting symptoms. • Treatment includes…
Definition Small incision lenticule extraction (SMILE) is a laser refractive procedure in which a corneal stromal lenticule is created with a femtosecond laser and removed though a small incision in…
Definition From the earliest optical devices to the latest computerized imaging systems, technology has aided the clinician in the diagnosis and treatment of ocular disease. Key Features • The ability…
Definitions • Photorefractive keratectomy (PRK) is a procedure in which the cornea is reshaped using an excimer laser. PRK involves epithelial removal and photoablation of Bowman’s layer and anterior corneal…
Definitions Blepharitis is a general term describing inflammation of the eyelids, whereas marginal blepharitis is inflammation of the eyelid margin, which can be subdivided into anterior and posterior blepharitis. Anterior…
