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Esotropia is a condition in which one or both eyes deviate inward, causing a cross-eyed appearance. It can be constant or intermittent, and has different types and causes, such as hyperopia, congenital, or accommodative factors.
Exotropia is a form of strabismus where the eyes are deviated outward, causing crossed diplopia and loss of binocular vision. Learn about the signs, symptoms, causes, and treatment options for exotropia, such as glasses, patching, exercises, surgery, and vision therapy.
Strabismus, also known as crossed eyes or squint, is a condition where the eyes do not point at the same object. It can cause double vision, amblyopia, and psychosocial problems. Learn about the types, causes, diagnosis, and treatment of strabismus.
Conjugate gaze palsy is a neurological disorder that affects the ability to move both eyes in the same direction. Learn about the causes, symptoms, diagnosis, and classification of different types of gaze palsies, such as horizontal, vertical, and progressive scoliosis.
Sixth nerve palsy, also known as abducens nerve palsy, is a disorder of the eye muscle that causes double vision and inability to turn the eye outward. It can be caused by various factors, such as diabetes, trauma, tumors, infections, or increased intracranial pressure, and affects different parts of the nerve along its pathway.
Parinaud's syndrome is a neurological condition that affects eye movement and pupil function due to injury to the dorsal midbrain. It is also known as vertical gaze palsy, sunset sign, or setting-sun sign, and can be caused by brain tumors, hydrocephalus, multiple sclerosis, stroke, or other factors.
Heterophoria is an eye condition where the eyes are not straight at rest position, but can be aligned by fusion. Learn about the types, signs, symptoms, causes, diagnosis and treatment of heterophoria.
A nictitating membrane is a transparent or translucent third eyelid present in some animals that can protect and moisten the eye. Learn about its distribution, functions, and vestigiality in different species, such as amphibians, reptiles, birds, and mammals.