Abstract
PURPOSE: To correlate straylight levels, lens scattering, lens opacity and intraocular aberrometry in patients with nuclear cataract. METHODS: This is a prospective study. Thirty consecutive patients (30 eyes) were including. Ocular Straylight was evaluated using the C-Quant. Lens scattering was evaluated using Scheimpflug anterior segment tomography, using the new software PNS. Dilated slip lamp evaluation was performed and lens opacity was classified according to LOCS III scale. Total wavefront was measured by ray tracing (iTrace); intraocular aberrations were calculated by the [...]
Highlights
Cataract is the leading cause of visual decline in elderly patients[1]
Of the many types of lens opacities, nuclear cataract has a strong relationship with the aging process, with patients experiencing a decline of visual function with the progression of nuclear sclerosis
We evaluated changes in density and the optical properties of the lens in eyes with nuclear cataract, establishing correlations between qualitative functional measures and subjective (LOCS III) and objective (PNS) diagnostic methods for the altered lens
Summary
Cataract is the leading cause of visual decline in elderly patients[1]. Of the many types of lens opacities, nuclear cataract has a strong relationship with the aging process, with patients experiencing a decline of visual function with the progression of nuclear sclerosis. The method uses an objective measure — log(s) — that corresponds to the degree of light scattering in the eye. Contrast sensitivity testing can be done using optotypes (e.g., Snellen chart, Landolt ring) or Ginsburg’s sine-wave gratings[7]. Such an approach is essential for observing and confirming cataract-related changes and helps inform decisions on surgical indication and visual prognosis[8]. We evaluated changes in density and the optical properties of the lens in eyes with nuclear cataract, establishing correlations between qualitative functional measures and subjective (LOCS III) and objective (PNS) diagnostic methods for the altered lens
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