Browse plain-English disease and condition guides, including symptoms, causes, diagnosis, treatment options, prevention, and when to seek medical care.
Persistent Hyperplastic Primary Vitreous (PHPV)—now more often called Persistent Fetal Vasculature (PFV) is a congenital (present at birth) eye condition. In a developing baby, the eye has...
Read articleAblepharon-Macrostomia Syndrome (AMS) is an extremely rare, autosomal dominant genetic disorder characterized principally by absent or underdeveloped eyelids (“ablepharon”) and an unusually wide, fish-like mouth (“macrostomia”)...
Read articleAcanthamoeba keratitis is a rare but potentially sight-threatening corneal infection caused by the free-living amoeba Acanthamoeba, which is found ubiquitously in soil, fresh water, and even...
Read articleAccommodative esotropia is a common form of childhood strabismus in which one or both eyes turn inward (esodeviation) because of excessive focusing (accommodation) linked to farsightedness...
Read articleAchromatopsia is a rare eye condition that affects how a person sees color. People with achromatopsia typically have trouble seeing colors or can only see them...
Read articleAchromatopsia is a rare, inherited vision disorder that causes a complete or partial inability to see color. People with achromatopsia rely almost entirely on their rod...
Read articleAchromatopsia 2 (ACHM2) is a genetic eye condition that starts from birth. It mainly affects the cone cells in the retina, which are the light-sensing cells...
Read articleAcquired Developmental Prosopagnosia, often referred to as ADP, is a condition that affects a person’s ability to recognize faces. It’s a complex condition, and in this...
Read articleAcquired ectropion uveae (AEU) is a condition in which the pigmented posterior layer of the iris—normally hidden on the back surface—becomes adherent to and everts onto...
Read articleAcquired oculomotor nerve palsy is a non-congenital condition in which the third cranial nerve (oculomotor nerve) becomes damaged after birth, leading to dysfunction of most extraocular...
Read articleAcquired ophthalmoparesis is a condition characterized by weakness or paralysis of one or more extraocular muscles—those that control eye movements—due to processes that occur after birth....
Read articleAcquired Orbital Dysmorphia (AOD) is a medical condition that affects the structure and appearance of the eye socket and surrounding areas. In simpler terms, it means...
Read articleReis-Bücklers Dystrophy is a rare eye condition that affects the cornea, the transparent front part of the eye. It can cause vision problems and discomfort. In...
Read articleSorsby Fundus Dystrophy (SFD) is a rare inherited eye disorder that affects the retina, leading to vision loss over time. It typically manifests in adulthood and...
Read articleNorth Carolina Macular Dystrophy (NCMD) is a rare genetic eye disorder that affects the macula, the central part of the retina responsible for sharp, central vision....
Read articleAdult-Onset Vitelliform Macular Dystrophy (AVMD) is a rare eye condition that affects the macula, a small but crucial part of the retina responsible for sharp, central...
Read articleClassic Vitelliform Macular Dystrophy (CVMD) is a rare eye condition that affects the macula, the central part of the retina responsible for sharp, central vision. It...
Read articleVitelliform Macular Dystrophy (VMD) is an eye condition that affects the macula, a small area near the center of the retina. This disorder can cause progressive...
Read articleAutosomal Recessive Stargardt-like Macular Dystrophy (AR-SD) is a rare genetic disorder that affects the retina, causing progressive vision loss. Here, we’ll delve into what this condition...
Read articleAutosomal Dominant Stargardt-like Macular Dystrophy (AD-STDGMD) is a genetic eye disorder that affects the macula, the central part of the retina responsible for sharp, central vision....
Read articleFundus Flavimaculatus, often referred to as Stargardt disease, is a type of inherited eye condition that affects the macula, the central part of the retina responsible...
Read articleStargardt-like macular dystrophy is a rare eye condition that affects the macula, the central part of the retina responsible for sharp, central vision. Although similar to...
Read articleStargardt-fundus flavimaculatus, often referred to simply as Stargardt disease, is a genetic eye disorder that affects the macula, a small area in the center of the...
Read articleLate-onset Stargardt disease is a type of eye condition that affects the retina, causing vision loss over time. It typically appears later in life compared to...
Read articleClassic Stargardt disease is a genetic eye disorder that affects the retina, the layer of tissue at the back of the eye responsible for capturing light...
Read articleStargardt disease is a type of inherited eye disorder that affects vision. It usually starts in childhood or adolescence and can lead to vision loss over...
Read articleMacular dystrophy is a condition that affects the macula, the central part of the retina responsible for sharp, central vision. This condition can lead to vision...
Read articleFamilial Amyloidosis with Lattice Dystrophy (FALD) is a rare genetic disorder that affects the eyes and other parts of the body. It’s important to understand its...
Read articleMeretoja Syndrome, also known as lattice corneal dystrophy type III, is a rare genetic disorder that affects various parts of the body. In this guide, we’ll...
Read articleClassic Lattice Dystrophy is a rare genetic eye condition that affects the cornea, the clear front surface of the eye. It is characterized by the buildup...
Read articleLattice dystrophy is a rare genetic disorder affecting the cornea, the transparent front part of the eye. It causes abnormal protein deposits to build up in...
Read articleGranular Dystrophy is a condition that affects the cornea, the transparent layer covering the front of the eye. It is a type of corneal dystrophy, which...
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