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Prosopagnosia is a fascinating but often misunderstood condition that affects a person’s ability to recognize faces. In simple terms, it’s often referred to as “face blindness.”...
An acquired retinal macroaneurysm (RAM) is a focal, abnormal dilation of a retinal arteriole wall, typically between 100 and 250 μm in diameter, occurring within the...
Acquired supranuclear ocular motor paresis (ASOMP) is a neurological condition characterized by a selective inability to initiate or control voluntary eye movements—particularly vertical gaze—while reflexive eye...
Acquired tritanopia is a condition that affects color vision, specifically the ability to see blue and yellow colors. Unlike congenital tritanopia, which is present from birth,...
Actinic keratosis (AK) is a common precancerous skin lesion characterized by rough, scaly patches that develop on sun-exposed areas of skin. These lesions arise from years...
Actinic keratosis of the conjunctiva is a premalignant change in the conjunctival epithelium caused by chronic ultraviolet (UV) exposure. On the ocular surface, atypical keratinocytes accumulate...
Acute Angle Closure Glaucoma/Glaucoma is a chronic, degenerative optic neuropathy that can be distinguished from most other forms of acquired optic neuropathy by the characteristic appearance...
Acute anterior uveitis (AAU) is a sudden inflammation of the front part of the uvea, specifically the iris (colored ring of the eye) and the ciliary...
Acute corneal hydrops is a sudden, sight-threatening complication of corneal ectatic disorders—most commonly keratoconus—characterized by an abrupt rupture in Descemet’s membrane and endothelium. This full-thickness break...
AEPVM is an uncommon retinal disorder first delineated by Gass et al. in 1988. It presents bilaterally with multiple, yellow-white lesions at the level of the...
Acute febrile neutrophilic dermatosis is a skin disease. Doctors also call it Sweet syndrome. “Acute” means it starts suddenly. “Febrile” means it comes with fever. “Neutrophilic”...
Acute Idiopathic Blind Spot Enlargement (AIBSE) Syndrome is a rare, self-limiting disorder of the outer retina first described by Fletcher and Imes in 1988. It typically...
