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Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses. Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.
A Cochrane Review on interventions for eye movement disorders due to acquired brain injury, [10] last updated June 2017, identified one study of botulinum toxin for acute sixth nerve palsy. [11] The Cochrane review authors judged this to be low-certainty evidence; the study was not masked and the estimate of effect was imprecise.
Aspherics are only [citation needed] used for corrective lenses when, in order to achieve a flatter lens for cosmetic reasons, the lens design deviates from the best-form sphere; this results in degradation of the visual correction, degradation which can, in some part, be compensated for by an aspheric design. The same is true for atoric and bi ...
Partisan Review (PR) was a left-wing small-circulation quarterly "little magazine" dealing with literature, politics, and cultural commentary published in New York City. The magazine was launched in 1934 by the Communist Party USA –affiliated John Reed Club of New York City and was initially part of the Communist political orbit.
Overall, the review found some evidence that hormone treatment improves psychological outcomes after 12 months, but found insufficient and inconsistent evidence regarding physical risks and benefits. The review advised that there should be a 'clear clinical rationale' for the prescription of hormone therapy under 18 years of age. [52] [35] [53 ...
An earlier Southern Review was published in Charleston, South Carolina from 1828 to 1832, and another in Baltimore from 1867 to 1879.. The initial staff consisted of editor-in-chief Charles W. Pipkin, Robert Penn Warren and Cleanth Brooks as managing editors, and Albert Erskine as business manager. [1]
Zenni Optical mail order. Zenni Optical was founded in 2003 by Tibor Laczay and Julia Zhen. [1] [2] Before being renamed to Zenni Optical when it began offering $7 and $8 glasses, the company was named 19dollareyeglasses.com. [3] [4] [5] Around 2014, co-founder Zhen acquired the building occupied by the Marin Independent Journal to house Zenni. [6]
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. [5]
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