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[FP-TH-05] IOL Types
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Day
Apr 03 (Thu)
Time
08:30 - 10:00
Room
Room 12 - Tokyo International Forum 5F G510
Topic
Cataract
Chair/Coordinator
Chair)Jorge Alio
 
 
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FP-TH-05-6

Duration 5min, Q&A 3min

Impact of IOL Asphericity and Blue Light Filtering on Visual Outcome: Contrast Sensitivity and 2nd-3rd Order Aberrations after Uneventful Cataract Surgery

【Speaker】
Argyrios Tzamalis
【Author】
Argyrios Tzamalis Myron Kynigopoulos Nikolaos Chalvatzis Ioannis Tsinopoulos Stavros Dimitrakos


Objective/Purpose
The aim of the study was to evaluate the effect of asphericity and blue light filter (BLF) of 3 different intraocular lenses (IOLs) on the visual performance, 2nd and 3rd order aberrations (defocus, coma, trefoil) and contrast sensitivity after uneventful cataract surgery.

Materials/Patients
Sixty eyes of sixty patients undergoing cataract surgery were assigned randomly to receive three IOL types: Bioline Yellow Accurate (aspheric, with BLF, i-medical, Germany), BioAcryl 60125 (spherical, without BLF, Biotech, France) and H65C/N (aspheric, without BLF, PhysIOL, Belgium). Each IOL was implanted in 20 eyes.

Methods
Complete ophthalmic examination, including best corrected and uncorrected visual acuity measurement, functional acuity contrast testing (FACT-Optec6500, Stereo Optical Inc., USA) and wavefront analysis (Zywave, Bausch & Lomb, Germany) were performed at a time point 60 days after surgery.

Results and Conclusion
The mean postoperative best corrected visual acuity (BCVA) was 0.95 ± 0.08 not differing statistically between IOL groups (p=0.83). Mean defocus and coma values did not yield any statistically significant difference through IOL groups varying from -0.784 to -0.614 and 0.129 to 0.198 respectively (p=0.79 and 0.34 respectively). Bioline Yellow Accurate presented less trefoil aberrations, 0.108 ± 0.05, rather than the other two IOL types (BioAcryl [0.206±0.19] and Physiol [0.193±0.17], p<0.05). Contrast sensitivity values did not differ between the groups under all lighting conditions, whether Bioline Yellow showed a statistically higher loss of contrast sensitivity (between mesopic without and with glare conditions) compared to the BioAcryl and PhysIOL in 12 and 3 cpd spatial frequencies respectively (p<0.05).
The IOL with BLF (Bioline Yellow) indicated a greater loss of contrast sensitivity under mesopic glare conditions and resulted in less trefoil aberrations after successful cataract surgery.

[ Keyword ]
blue light filtering / aspheric IOL / contrast sensitivity / aberrometry

[ Conflict of Interest ]
No

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