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One pupil larger than the other5/26/2023 Pupil size is an important factor in predicting post-operative satisfaction. The pupil regulates the amount of light reaching the retina and minimizes chromatic aberration and spherical aberration to maximize visual perception. Other factors affecting pupil size can be used in a preoperative evaluation when considering cataract surgery or laser refractive surgery. Pupil size was significantly smaller in eyes with glaucoma. Humphrey static perimetry can be useful in measuring pupil size. In patients older than 50 years, pupil size was significantly larger in eyes with a history of cataract surgery. Pupil size decreased significantly as age ( p < 0.001) and central cornea thickness ( p = 0.007) increased, and increased significantly as logMAR BCVA ( p = 0.02) became worse and spherical equivalent ( p = 0.007) and RNFL thickness ( p = 0.042) increased. Pupil size was significantly smaller in glaucoma patients than in glaucoma suspects ( p < 0.001) or the normal group ( p < 0.001). Comparisons of pupil size according to the presence of glaucoma were evaluated, as were correlations between pupil size and various factors, including age, logMAR best corrected visual acuity (BCVA), retinal nerve fiber layer (RNFL) thickness, spherical equivalent, intraocular pressure, axial length, central corneal thickness, white-to-white, and the kappa angle. Pupil size was measured with Humphrey static perimetry. In total, 825 eyes of 415 patients were evaluated retrospectively. We assessed the correlation between pupil size, measured by Humphrey static perimetry, and various affecting factors in patients with glaucoma.
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