lens opacity


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Related to lens opacity: stye

lens opacity

Cataract, see there.
References in periodicals archive ?
A fifth of adults 40 years and above in Nigeria are reported to have some degree of lens opacity. In 2005, data from the Ophthalmological Society of Nigeria indicated that about 1.2 million people in Nigeria were blind due to cataract and about 4.08 million people had low vision.
On this basis, we can investigate whether the inter-eye differences in lens opacity patients are related to inter-eye differences in AMD patients.
In this retrospective study, we defined cataract as a lens opacity of any type that results in loss of [greater than or equal to] 2 lines of CDVA or cataract surgery.
The criterion for diagnosis of a cataract was "sufficiently advanced lens opacity that caused impaired vision/ un-gradable images on non-mydriatic fundus camera for retinal screening.
Visual acuity was 1/10 on the third day after the trauma; however, due to increasing lens opacity, it decreased to hand motions by day 7 (Figure 2).
The study, funded by the Wellcome Trust and Guide Dogs for the Blind, also found that environmental factors (including diet) influenced cataract more than genetic factors, which only explained a third of the change in lens opacity.
Age is a major risk factor for the condition, which gradually renders the lens of the eye opaque--by age 65, about half of all Americans have some degree of lens opacity, and more than half have a cataract or have had cataract surgery by the time they reach age 80.
An important methodological consideration in quantitative measurement of retinal vasculature complexity is the effect of refractive error, lens opacity, and aging [3,12].
The classification of cataract types corresponded to a lens opacity of sufficient severity that a clinical ophthalmologist would label it as a cataract (Klein et al., 1990).
The cataract is severe lens opacity or clouding of crystalline lens which brings about vision disorders.
Currently, methods of cataract detection are based on subjective observation of lens opacity by Rayleigh light scattering.
A severity score, based on opalescence, color, and lens opacity, derived from the Lens Opacities Classification System III (Chylack et al.