Nuclear Ophthalmoplegia
Nuclear ophthalmoplegia is a group of rare disorders characterized by paralysis or weakness of one or more of the extraocular muscles, caused by lesions in the cranial nerve nuclei within the ...
Rx Eye & Vision Care (A – Z)
Oculomotor Nerve Palsy
Oculomotor (III) nerve palsy occurs when the third cranial nerve, known as the oculomotor nerve, is damaged or disrupted. This nerve controls most of the eye’s movements—lifting the eyelid (via the ...
Möbius Syndrome
Möbius syndrome is a rare congenital condition characterized chiefly by non-progressive facial paralysis and impaired lateral eye movement. Infants with Möbius syndrome are born unable to smile, ...
Duane Retraction Syndrome (DRS)
Duane Retraction Syndrome (DRS) is a congenital ocular motility disorder characterized by limited horizontal eye movement, globe retraction (the eye pulling back into the socket), and narrowing of ...
Congenital Fibrosis of the Extraocular Muscles (CFEOM)
Congenital Fibrosis of the Extraocular Muscles (CFEOM) is a rare, inherited condition characterized by abnormal development and fibrosis (scarring) of the muscles that control eye movement. From ...
Neuromuscular Junction Ophthalmoparesis
Neuromuscular junction ophthalmoparesis refers to weakness or paralysis of the eye muscles caused by disorders at the junction between nerve endings and muscle fibers. In healthy individuals, nerves ...
Myogenic Ophthalmoparesis
Myogenic ophthalmoparesis refers to weakness (-paresis) of one or more of the extraocular muscles due to a primary muscle (myogenic) disorder, rather than nerve or neuromuscular junction pathology. ...
Neurogenic Ophthalmoparesis
Neurogenic ophthalmoparesis is a condition characterized by weakened or paralyzed eye muscles due to dysfunction of the cranial nerves (III, IV, VI) or their nuclei in the brainstem. Unlike myogenic ...
Acquired Ophthalmoparesis
Acquired 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. Unlike ...
Ophthalmoparesis
Ophthalmoparesis is a neurological condition characterized by weakness or paralysis of one or more of the extraocular muscles that control eye movement. In simple terms, it means the eyes cannot move ...
Bilateral Nuclear Vertical Gaze Palsy
Bilateral nuclear vertical gaze palsy is a rare neurological condition in which a person cannot move their eyes up or down in a coordinated way because of damage to the brain’s vertical gaze centers. ...
Unilateral Nuclear Vertical Gaze Palsy
Unilateral Nuclear Vertical Gaze Palsy is a rare neurological condition in which the nuclei—or clusters of nerve cells—in the midbrain responsible for moving the eyes up or down on one side are ...
Combined (Up/Down) Nuclear Vertical Gaze Palsy
A combined nuclear vertical gaze palsy is a disorder of eye movement in which both upward and downward gaze are impaired due to damage at the level of the oculomotor (III) and trochlear (IV) nerve ...
Downward Nuclear Vertical Gaze Palsy (DNVGP)
Downward nuclear vertical gaze palsy is a neurological condition in which the eyes lose the ability to move downward, despite intact muscles and nerves controlling eye movement. This impairment ...
Upward Nuclear Vertical Gaze Palsy
Upward Nuclear Vertical Gaze Palsy is a neurological condition in which the brain’s vertical gaze centers—located in the midbrain nuclei—lose the ability to move the eyes upward. This impairment ...
Infranuclear Vertical Gaze Palsy
Infranuclear Vertical Gaze Palsy (IVGP) is a form of eye movement disorder characterized by difficulty moving the eyes up or down due to problems at or below the level of the cranial nerve nuclei. ...
Nuclear Vertical Gaze Palsy
Nuclear vertical gaze palsy is an ocular motor disorder in which direct injury to the motor nuclei controlling upward or downward eye movements leads to an inability to move both eyes conjugately in ...
Supranuclear Vertical Gaze Palsy
Supranuclear vertical gaze palsy (SVGP) is a neurological sign in which a person loses the ability to move their eyes up or down on command, even though the eye muscles and nerves themselves are ...
Vertical Gaze Palsy
A vertical gaze palsy (VGP) is a neurological sign characterized by a conjugate, bilateral limitation of eye movements in the vertical plane. This condition can selectively affect the saccadic ...
Optic Pathway Glioma–Associated Syndrome
Optic Pathway Glioma–Associated Syndrome refers to the collection of clinical, genetic, and radiologic features that accompany gliomas arising along the visual pathway—from the optic nerve through ...
