“…19 However, previous studies mainly focused on yellow-tinted blue light-filtering IOLs, such as the Acrysof SN60AT Natural (Alcon Laboratories, Inc.) and the Hoya AF-1(UY) YA-60BB (Hoya Surgical Optics, Inc.); the studies found that the transmission rates were slightly higher than that of a middle-aged human lens (approximately 5% at 400 nm and 70% at 500 nm). [43][44][45][46] In contrast, we evaluated an orange-tinted blue light-filtering IOL, the PC 440 Y Orange Series IOL, which is characterized by more powerful spectral absorption properties than a human lens, and compared the results with those of a conventional clear UV lightfiltering IOL, the PC 430 Elite Series IOL. [14][15][16][17][18][19][44][45][46] We evaluated the scotopic and photopic visual acuity, contrast sensitivity, color discrimination, and potential postoperative visual symptoms.…”