The Blue Blocking IOL
Only Lenstec offers the precision and predictability of an aspheric IOL made from unique blue-blocking material proven effective for 20 years.
The Softec HDY is fabricated from a material that has been proven stable, particularly with respect to long term exposure to sunlight, using an accelerated aging study that replicates the equivalent of 20 years of exposure for the average person (based on specific ISO standards for the photostability of IOLs).
So, while the discussion of using blue light absorbers in the fabrication of IOLs has been ongoing since the late 1980s, most researchers would agree that blocking certain wavelengths of visible light is beneficial to the eye… and a material proven to provide stable light transmission properties for 20 years is the obvious choice.
| A Constant and A/C Depth figures shown are strictly guidelines for the calculation of implant power. Lenstec recommends that surgeons develop their own values based on technique, measuring equipment and desired postoperative results.
U.S. Patent No. 7,350,918
Issue Date: April 1, 2008 |
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| Optic Size: | 5.75mm |
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| Optic Type: | Equiconvex | |
| Length: | 12.00mm | |
| Haptic Style: | Modified C | |
| Angulation: | 0 Degrees | |
| Position Holes: | 0 | |
| Construction: | 1 Piece | |
| Optic Material: | Acrylic (26% water) | |
| A/C Depth: | 5.10mm | |
| A Constant: | 118.0 |
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| A-Constant Optimized: | ||
| SRK/T: | A = 118.43 | |
| SRK II: | A = 118.47 | |
| Holladay-1: | sf = 1.48 | |
| Hoffer Q: | pACD = 5.29 | |
| Diopter Increments: | ||
| Whole: | +5.0 to +36.0 | |
| Half: | +10.5 to +29.5 | |
| Quarter: | +18.0 to +25.0 | |