Nearsightedness in adolescence would steer a person into a trade or craft involving near vision, such as weaving or woodworking, and a naturally nearsighted person continues to have good near vision after the onset of presbyopia.
32.
This case is interesting because the astronaut did not have disc edema or choroidal folds, but was documented to have nerve fiber layer ( NFL ) thickening, globe flattening, a hyperopic shift and subjective complaints of loss of near vision.
33.
"About the time you turn 40, the eyes start to lose their capability to focus sharply for near vision, " said Dr . Jeffrey Weaver, director of the Clinical Care Center at the American Optometric Association in St . Louis.
34.
Professor Pallikaris serves as the Medical Advisory Board Chair for Presbia, an ophthalmic device company, where he is responsible for overseeing the post-market surveillance trials of the Flexivue Microlens, a corneal inlay treatment for presbyopia, the age-related loss of near vision.
35.
In 2015, Dr . Wallerstein and Dr . Cohen launched a new laser vision procedure called Laser PresbyVision " !, a corneal-based treatment designed to correct blurred near vision and reduce patients need for reading glasses, a condition known as presbyopia.
36.
The abrupt transition of power seemed unnatural to him, and he believed it to be more rational to use a lens that would correct far vision on the upper portion of the lens, intermediate vision in its middle part and near vision in its lower part.
37.
So while for Varilux the surface structure was close to the characteristics of the bifocal lens, with an upper aberration-free half of the surface for far vision and a rather large " segment " for clear near vision, Varilux 2 was distinguished by a totally aspheric design.
38.
This procedure uses laser refractive surgery to correct the dominant eye mainly for distance vision and the nondominant eye mainly for near vision, while the depth of field ( i . e . the range of distances at which the image is in focus ) of each eye is increased.
39.
He then gave me a prescription that was purely aimed at correcting my distance vision ( and damn my ability to use it for near vision ) and the correction was "'remarkably "'better, but of course I have to take the glasses off a lot more to work up close.
40.
There are numerous variants of the LEA test which can be used to assess the visual capabilities of near vision and distance vision, as well as several other aspects of occupational health, such as contrast sensitivity, visual field, color vision, visual adaptation, motion perception, and ocular function and accommodation ( eye ).
