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VA Nsc - VA Ncc Visual acuity with Near chart without correctors Visual acuity with eye chart at Near 15.7 inches (400 mm) and without (sc: Latin sine correctore) correctors (spectacles); Ncc is with (cc: Latin cum correctore) correctors. See Visual_acuity#Legal_definitions: VA OS Left visual acuity VA OD Right visual acuity VDU Visual display unit
The Department of Veterans Affairs (VA) began to provide disability benefits for post-traumatic stress disorder (PTSD) in the 1980s after the diagnosis became part of official psychiatric nosology. Post-traumatic stress disorder (PTSD) is a serious, potentially debilitating psychiatric disorder that can develop after experiencing one or more ...
However, it accounts for general reductions of vision caused by media opacities (e.g. cataract), uncorrected refractive error, reductions in sensitivity due to age and pupil miosis. This highlights focal loss only (i.e. vision loss suspected from only pathological processes). [16] Therefore, this is the main plot referred to when making a ...
It is not intended to establish substantive rules beyond those contained in statute and regulation.” [4] [5] At the same time, federal courts consult the M-21 Manual to determine if VA's actions conform with their own regulations, policies, and procedures, and to gain insight into the meaning and intent of VA regulations. [6] [7]
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]
The aim of an accurate intraocular lens power calculation is to provide an intraocular lens (IOL) that fits the specific needs and desires of the individual patient. The development of better instrumentation for measuring the eye's axial length (AL) and the use of more precise mathematical formulas to perform the appropriate calculations have significantly improved the accuracy with which the ...
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Posterior capsular opacification, also known as after-cataract, is a condition in which months or years after successful cataract surgery, vision deteriorates or problems with glare and light scattering recur, usually due to thickening of the back or posterior capsule surrounding the implanted lens, so-called 'posterior lens capsule opacification'.