X-ray radiation affects the protection filter of yellow-tinted acrylic hydrophobic intraocular lenses against harmful UV-A and blue light

Abstract

Purpose: This study aims to investigate whether x-ray irradiation at doses delivered to the eye in plain radiography, CT and fluoroscopically guided procedures can affect the optical properties of yellow-tinted intraocular lenses (IOLs) implants in the near-Ultraviolet (UV-A) and visible (VIS) region. Material and Methods: 5 yellow azodye doped IOL of different models and diopters were irradiated with x-rays ranging from 1.1 to 22.6 mGy. The transmission spectra of each IOL were recorded pre-irradiation and post-irradiation by using a light source for IOL illumination, a spectraflect-coated integration sphere for the spectrum collection and a UV/VIS spectrometer for the spectrum record. Results: According to the recorded spectra, the transmittance of all the yellow-tinted IOLs increases systematically in the UV-A and blue light region as the irradiation dose increases. A linear dependence is recorded between the percentage increase of the transmittance and the increase in the irradiation dose at 380 nm.