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HOYA iSert® 230 (Clear) / 231 (Yellow)

HOYA iSert® 230 (Clear) / 231 (Yellow)

See overview specifications for details.

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HOYA iSert® 231 Preloaded IOL system

Specifications

Model names UV Absorbing IOL (230), Blue Light Absorbing IOL (231)
Optic material Hydrophobic Acrylic
Optic design Aspheric
Manufacturing Lathe-cut and tumble polished
Haptic material PMMA
Haptic Configuration Modified-C loop
Diameter (optic/OAL) 6.0 mm/12.5 mm
Power +6.0 to +30.0 D (0.5 D steps)
Injector iSert® Preloaded IOL System
Front injector tip outer diameter 1.89mm
Nominal A-constant 118.4

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.

 

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HOYA iSert® 250 (Clear) and 251 (Yellow)

The HOYA iSert® 250 (Clear) and 251 (Yellow) intraocular lens is a true Hydrophobic acrylic IOL that is fully preloaded and offers surgeons simplicity and ease of use.

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Specifications

Preloaded, Monoblock, Aspheric, Blue Light Absorbing IOL (251), UV-absorbing IOL (250)

Model names iSert® 250 (Clear), 251 (Yellow)
Optic material Hydrophobic Acrylic
Optic design Aspheric
Manufacturing Lathe-cut and pad polished
Haptic material Hydrophobic acrylic with blue PMMA chemically bonded haptics tips
Haptic Configuration Modified-C loop
Diameter (optic/OAL) 6.0 mm/12.5 mm
Power +6.0 to +30.0 D (0.5 D steps)
Injector iSert® Preloaded IOL System
Front injector tip outer diameter 1.82mm
Nominal A-constant 118.4
Optimized constants

Haigis a0 = -0.542 a1 = 0.161 a2 = 0.204
Hoffer Q pACD = 5.30
Holladay 1 sf = 1.52
SRK/TA = 118.5
SRK II A = 118.8

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)