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The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.
nystagmus (rapid, involuntary eye movements), causing sleep disturbances; ophthalmoplegia (paralysis of extraocular muscles) diplopia (double vision) Scientific studies have revealed that psychiatric symptoms are also common in patients with cerebellar degeneration, [5] [6] where dementia is a typical psychiatric disorder resulting from ...
It typically presents with painless vision loss affecting both eyes. Rarely, it may cause acute vision loss with severe pain due to perforation of the cornea. It is typically characterized by a clear, bilateral thinning in the inferior and peripheral region of the cornea, although some cases affect only one eye. The cause of the disease remains ...
Picture of the back of the eye showing intermediate age-related macular degeneration: Specialty: Ophthalmology, optometry: Symptoms: Blurred or no vision in the center of the visual field [1] Complications: Visual hallucinations [1] Usual onset: Older people [1] Types: Early, intermediate, late [1] Causes: Damage to the macula of the retina [1 ...
A vision disorder is an impairment of the sense of vision. Vision disorder is not the same as an eye disease . Although many vision disorders do have their immediate cause in the eye, there are many other causes that may occur at other locations in the optic pathway.
Tubular vision: Tubular vision Since macular fibers are the most resistant to glaucomatous damage, the central vision remains unaffected until end stages of glaucoma. Tubular vision or Tunnel vision is the loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like field of vision.
In contrast, AIR is an acquired condition where the immune system attacks retinal cells, often leading to more rapid vision deterioration and additional symptoms such as photophobia and color vision loss. While both conditions affect the retina, AIR tends to progress faster and can be associated with a history of cancer or systemic inflammation.
If the brain never learns to see objects in detail, then there is a high chance of one eye becoming dominant. The result is that the brain will block the impulses of the non-dominant eye. In contrast, the child with myopia can see objects close to the eye in detail and does learn at an early age to see objects in detail. [medical citation needed]
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