Alpha-Gal Syndrome
Alpha-Gal Syndrome (AGS) is a potentially life-threatening, IgE-mediated allergic condition in which the body reacts to the carbohydrate galactose-α-1,3-galactose (alpha-gal) found in most mammals. ...
Rx Eye & Vision Care (A – Z)
Alice in Wonderland Syndrome (AIWS)
Alice in Wonderland Syndrome (AIWS) is a rare neurological condition that makes a person’s perceptions of their own body or the world around them feel distorted. People with AIWS might see objects as ...
Alexia without Agraphia (Pure Alexia)
Alexia without agraphia, often called pure alexia or word blindness, is a rare neurological condition in which a person loses the ability to read printed text despite being able to write normally. In ...
Alagille Syndrome
Alagille syndrome is a rare genetic disorder that primarily affects the liver and heart, but can also involve the eyes, skeleton, kidneys, and blood vessels. It is characterized by a reduced number ...
Akinetopsia
Akinetopsia, often called “motion blindness,” is a rare neurological disorder in which a person cannot perceive motion in their visual field. Instead of seeing continuous movement, individuals with ...
Aicardi Syndrome
Aicardi syndrome is a rare neurodevelopmental disorder primarily affecting females, characterized by the absence of the corpus callosum, distinctive retinal lesions, and early-onset seizures. First ...
Ageism in Neuro-Ophthalmology
Ageism in Neuro-Ophthalmology refers to the stereotypes, prejudices, and discriminatory practices that affect older (and sometimes younger) patients when they seek neurological eye care. In practice, ...
Age-Related Macular Degeneration (AMD)
Age-Related Macular Degeneration (AMD) is a chronic eye condition that gradually destroys sharp, central vision, essential for activities like reading, driving, and recognizing faces. It affects the ...
Advancing Wavelike Epitheliopathy
Advancing wavelike epitheliopathy (AWE) is a chronic or recurrent disorder of the corneal epithelium characterized by well-demarcated, wavelike plaques of coarse, thickened cells that advance ...
Adult-Onset Asthma with Periocular Xanthogranuloma (AAPOX)
Adult-Onset Asthma with Periocular Xanthogranuloma (AAPOX) is a rare, multisystem inflammatory disorder characterized by the combination of new-onset asthma in adulthood and yellowish, ...
Adie Pupil
Adie pupil—also called Adie’s tonic pupil—is a neurological condition in which one or both pupils are abnormally dilated (larger than normal) and react poorly or sluggishly to bright light, yet ...
Adenoid Cystic Carcinoma of the Lacrimal Gland
Adenoid cystic carcinoma of the lacrimal gland is a rare but aggressive malignant tumor that arises from the secretory epithelial cells of the tear-producing lacrimal gland. Under the microscope, it ...
Adaptive Optics
Adaptive optics (AO) is an advanced technology used to improve the clarity and resolution of images taken through systems that suffer from optical distortions. Originally developed for astronomical ...
ADAMTSL4-Related Eye Disorders
ADAMTSL4-related eye disorders are rare autosomal recessive conditions characterized by lens displacement (ectopia lentis), often with pupillary displacement in some cases (ectopia lentis et ...
Acute Zonal Occult Outer Retinopathy (AZOOR)
Acute Zonal Occult Outer Retinopathy (AZOOR) is a rare retinal disease first described by J. Donald Gass in 1992. It is classified within the “white dot syndromes” and is characterized by the acute ...
Krill’s Disease
Krill’s disease, commonly known as Acute retinal pigment epitheliitis (ARPE), is a rare, idiopathic, self-limiting inflammatory disorder of the macula first described in 1972 by Krill and Deutman in ...
Acute Retinal Pigment Epitheliitis
Acute Retinal Pigment Epitheliitis (ARPE), sometimes called Krill’s disease, is a rare, self‐limiting inflammation of the retinal pigment epithelium (RPE). The RPE is a thin layer of cells just ...
Acute Retinal Pigment Epitheliitis (ARPE)
Acute Retinal Pigment Epitheliitis (ARPE), also known as Krill’s disease, is a rare, idiopathic, self-limiting inflammatory disorder affecting the macula of otherwise healthy young adults. It ...
Acute Retinal Necrosis
Acute retinal necrosis (ARN) is a rare but serious inflammatory condition of the eye characterized by rapid, full-thickness death of retinal tissue, typically beginning in the peripheral retina and ...
Acute Posterior Multifocal Placoid Pigment Epitheliopathy (APMPPE)
Acute Posterior Multifocal Placoid Pigment Epitheliopathy (APMPPE) is a rare, acute, inflammatory chorioretinal disorder classified among the “white dot syndromes.” It predominantly affects young ...
