The HOYA iSert® 254 (Clear) and 255 (Yellow) intraocular lens is a hydrophobic acrylic IOL fully preloaded and offers surgeon simplicity and superior ease to use.
HOYA® iSert® 254 and 255
Preloaded, Monoblock, Aspheric, Blue Light Absorbing IOL (254),UV-absorbing IOL (255)
||Lathe-cut and pad polished|
||Hydrophobic acrylic with blue PMMA chemically bonded haptics tips|
||6.0 mm/12.5 mm|
||+6.0 to +30.0 D (0.5 D steps)|
||iSert® Preloaded IOL System|
Front injector tip outer diameter
Haigis a0 = -0.542 a1 = 0.161 a2 = 0.204
The mentioned A-Constant is presented as a guideline only for lens power calculations. It is recommended that the A-Constant measurement be customized based on the surgeon’s experience and measuring equipment.
Optimized Optical constants Source: http://ocusoft.de/ulib/c1.htm (as of Oct. 31, 2016)