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Where appropriate, prismatic correction can be used, either temporarily or permanently, to relieve symptoms of double vision. In specific cases, and primarily in adult patients, botulinum toxin can be used either as a permanent therapeutic approach, or as a temporary measure to prevent contracture of muscles prior to surgery
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.
In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia.
If the patient saw a red line to the right and white light to the left, they are said to have esotropia or esophoria (uncrossed diplopia) in which base out (BO) prisms of increasing strength are used until the lines are superimposed.
ESPN executive Norby Williamson, who came under attack in recent months from host Pat McAfee in an on-air rant accusing the network veteran of “sabotage,” will depart the sports network.
Emmanuel Acho has never been one to shy away from an uncomfortable conversation.. In the new book Uncomfortable Conversations With a Jew, the football analyst, 33, collaborates with The New York ...
Two former FBI officials have reached a tentative settlement with the Justice Department to resolve claims that their privacy was violated when the department leaked to the news media text ...
The Chicago Tool Library is a 501(c)(3) nonprofit organization founded in the United States that help individuals borrow from an inventory of thousands of items that range from basic hand tools and table saws to ice cream makers and camping equipment.
The SEC, under the controversial chair Gary Gensler, has made a number of sorties in the past weeks indicating he would claim Ethereum to be a security and under his severe remit. An ETF of an ...
Prism spectacles with a single prism perform a relative displacement of the two eyes, thereby correcting eso-, exo, hyper- or hypotropia. In contrast, spectacles with prisms of equal power for both eyes, called yoked prisms (also: conjugate prisms, ambient lenses or performance glasses) shift the visual field of both eyes to the same extent.