A 63-year-old woman with cataracts presents with unusual double white-yellow rings in both corneas. Learn about the cause of this ophthalmologic finding.
A 63-year-old woman who had presented to the ophthalmology clinic for evaluation of cataracts was found to have white-yellow rings in both eyes. Over the past few years, she had noticed mild worsening of her vision. She reported no history of keratitis or ocular trauma. A lipid panel had been normal at a health maintenance visit 6 weeks before presentation. On ophthalmologic examination, peripheral opacities were observed in the lens of each eye, a finding consistent with age-related cataracts. A funduscopic examination was normal. Visual acuity was 20/30 in each eye. On slit-lamp examination, two concentric white-yellow rings were seen in each cornea. No corneal thinning or inflammation was apparent. Deposition of what substance is responsible for this finding?