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Straylight measurement may correlate well with PCO severity
Am J Ophthalmol. 2010;150(2): 248-253.
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Although both visual acuity and straylight improved after YAG capsulotomy to correct posterior capsule opacification, straylight may more accurately correlate with degree of posterior capsule opacification, according to a study.
In the study, 53 eyes of 41 patients were assessed for visual acuity and straylight following capsulotomy for correlation with PCO severity scoring; PCO was assessed on a scale of 1 to 10 in each eye with slit lamp photography using retroillumination and light reflected from the posterior capsule. Computer software was also used to grade PCO severity using retroillumination images.
Straylight, as measured by C-Quant (Oculus), "correlated well with retroillumination and reflected-light PCO scores, whereas [visual acuity] only correlated with retroillumination," the study authors wrote. Older age, large ocular axial length, hydrophobic acrylic IOLs and small capsulotomy size were all found to significantly affect intraocular straylight.
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