We report a case of unilateral erythropsia lasting 1 week that occurred 18 years after cataract extraction and intraocular lens (IOL) implantation. The unaffected eye was pseudophakic and had an IOL with ultraviolet (UV) light protection; the affected eye had an IOL without UV light protection.
Although cobalt blue light is selectively absorbed by yellow pigment in an aging nuclear cataract, its ability to predict visual acuity loss due to lens opacity was limited.
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