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Superior oblique myokymia is a neurological disorder affecting vision and was named by Hoyt and Keane in 1970. [1] It is a condition that presents as repeated, brief episodes of movement, shimmering or shaking of the vision of one eye, a feeling of the eye trembling, or vertical/tilted vision. It can present as one or more of these symptoms.
[10] The onset of blepharospasm tends to be during the ages 40–60. [8] [10] [11] The condition is roughly more than twice as frequent among females than males, [7] [8] [11] which may be related to menopause and hormone treatments. [12] [13] In Taiwan, the condition is more frequent among white- than blue-collar workers. [8]
Ocular ischemic syndrome is the constellation of ocular signs and symptoms secondary to severe, chronic arterial hypoperfusion to the eye. [1] Amaurosis fugax is a form of acute vision loss caused by reduced blood flow to the eye; it may be a warning sign of an impending stroke, as both stroke and retinal artery occlusion can be caused by thromboembolism due to atherosclerosis elsewhere in the ...
There are many diseases known to cause ocular or visual changes. Diabetes , for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.
Many doctors commonly recommend a combined treatment of a warm compress applied to the eyes (to relieve muscle tension, relax the muscles, and reduce swelling), a small dosage of antihistamine (to reduce any swelling that may be caused by an allergic reaction), increased bed rest and decreased exposure to computer screens, televisions, and harsh lighting (to allow muscles to rest), and ...
A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ciliary muscle cannot relax ...
Major symptoms are sudden loss of vision (partial or complete), sudden blurred or "foggy" vision, and; pain on movement of the affected eye. [4] [5] [2]Many patients with optic neuritis may lose some of their color vision in the affected eye (especially red), with colors appearing subtly washed out compared to the other eye.
Lesions anywhere in the abducens nucleus, cranial nerve VI neurons, or interneurons can affect eye movement towards the side of the lesion. Lesions on both sides of the abducens nucleus can cause a total loss of horizontal eye movement. [6] One other type of gaze palsy is a horizontal saccadic palsy.