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Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
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.
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. [1] It is the opposite of exotropia and usually involves more severe axis deviation than esophoria. Esotropia is sometimes erroneously called ...
The new attraction—The Dolly Parton Experience—is located where the previous museum was, the Chasing Rainbows Museum. Now, there's a giant sparkling pink and purple butterfly to greet you ...
The family of an American caught up in a failed coup attempt in Congo said their son, Tyler Thompson, was in Africa on vacation with family friends and had not previously engaged in political ...
The judge allowed Bozell to remain free until he must report to prison at a date to be determined. Bozell thanked the judge after learning his sentence. Bozell was arrested in February 2021. An ...