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If the eye was exotropic, covering the fixating eye will cause an inwards movement; and if esotropic, covering the fixating eye will cause an outwards movement. The alternating cover test, or cross cover test is used to detect total deviation (tropia + phoria).
Symptoms. 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 ...
Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex. Light will be bent towards the base and the image will be shifted towards the apex.
The test is indicated with the use of a presence of a prism in individuals with a strabismus and fusion is considered present if 4 lights are maintained, with or without the use of a prism. The W4LT can also be indicated when aiding a person to develop and strengthen their fusional capacities.
The official CoolSculpting website lists paradoxical hyperplasia as some of the "rare" additional side effects of CoolSculpting, along with "late onset pain, freeze burn, vasovagal...
When such symptoms are caused by medications or other drugs, they are also known as extrapyramidal side effects (EPSE). The symptoms can be acute (short-term) or chronic (long-term).
Esotropia is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. It is the opposite of exotropia and usually involves more severe axis deviation than esophoria.
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
Refractive error is a problem with focusing light accurately on the retina due to the shape of the eye and/or cornea. [1] The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia. [1]
Additionally, the following side effects have all been reported by patients: Chronic muscular pain, numbness and weakness of the limbs, Horner's Syndrome, anhidrosis (inability to sweat), hyperthermia (exacerbated by anhidrosis and systemic thermoregulatory dysfunction), neuralgia, paraesthesia, fatigue and amotivationality, breathing ...