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Anisometropia is caused by common refractive errors, such as astigmatism, far-sightedness, and myopia, in one eye. [ 6] Anisometropia is likely the result of both genetic and environmental influences. [ 7] Some studies suggest, in older adults, developing asymmetric cataracts may cause worsen anisometropia.
Aniseikonia. Aniseikonia is an ocular condition where there is a significant difference in the perceived size of images. It can occur as an overall difference between the two eyes, or as a difference in a particular meridian. [ 1] If the ocular image size in both eyes are equal, the condition is known as iseikonia. [ 2]
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.
Optic neuropathy is damage to the optic nerve from any cause. The optic nerve is a bundle of millions of fibers in the retina that sends visual signals to the brain. Damage and death of these nerve cells, or neurons, leads to characteristic features of optic neuropathy. The main symptom is loss of vision, with colors appearing subtly washed out ...
The signs and symptoms of far-sightedness include blurry vision, frontal or fronto temporal headaches, eye strain, tiredness of eyes etc. [2] The common symptom is eye strain. Difficulty seeing with both eyes ( binocular vision ) may occur, as well as difficulty with depth perception. [ 1 ]
In some cases, your member may feel completely numb. Injury and nerve injury can come from many sources. Your privates can be injured from trauma to the perineal region or nerves can be injured ...
In ophthalmology, Functional visual loss is the reduction in visual acuity or visual field that has no physiological or organic basis. This disease can come under the spectrum of functional neurological disorder or somatic symptom disorder under the categorization of the Diagnostic and Statistical Manual of Mental Disorders -5.
Classically, symptoms of hair loss in men include a receding hairline (particularly over the temples, creating a characteristic “M” shape) and signs of balding at the top of the head, referred ...