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Session Title: IOL Technology
Session Date/Time: Sunday 06/10/2013 | 16:30-18:30
Paper Time: 17:52
Venue: Auditorium (First Floor)
First Author: : L.Werner USA
Co Author(s): : C. Morris E. Liu S. Stallings A. Floyd
To investigate the potential effect of surface light scattering on the light transmittance of single-piece hydrophobic acrylic intraocular lenses (IOLs) with or without blue light filter (BLF).
John A. Moran Eye Center, University of Utah.
IOLs were obtained from human cadavers (49 lenses total; 36 with BLF), and from finished-goods inventory (controls). The IOLs were explanted from the cadaver eyes and power/model matched to unused control IOLs. After removing surface proteins, the IOLs were allowed to hydrate for 24 hours at room temperature. Surface light scattering was measured with a Scheimpflug camera (EAS-1000 Anterior Segment Analysis System, Nidek Ltd). Light transmittance was measured with a Perkin Elmer Lambda 35 UV/Vis spectrophotometer (single-beam configuration with RSA-PE-20 integrating sphere).
Hydrated scatter values ranged from 4.8 to 202.5 CCT for explanted IOLs with BLF and 1.5 to 11.8 CCT for controls; values ranged from 6.0 to 137.5 CCT for explanted IOLs without BLF and 3.5 to 9.6 CCT for controls. In both groups, there was a tendency for increasing scatter values with increasing postoperative time. No differences in light transmittance were observed between explanted IOLs and controls for both groups of lenses (BLF IOLs: P=0.407, Paired T-Test; Non BLF IOLs: P=0.487, Paired T-Test).
Although surface light scattering of explanted lenses was significantly higher than that of controls and appeared to increase with time, no effect was observed on the light transmittance of single-piece hydrophobic acrylic lenses with or without BLF.
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