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مقاله
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Abstract
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Title:
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Comparison of MTF in two Hydrophobic and hydrophilic intraocular lenses
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Author(s):
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Hassan Hashemi, Ebrahim Jafarzadepour, Mehdi Khabazkhoob, Tahereh Abdolahinia
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Presentation Type:
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Poster
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Tahereh Abdolahinia
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Affiliation :(optional)
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Noor Ophthalmic Research Center, TUMS
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E mail:
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tabdolahinia@gmail.com
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Phone:
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Mobile:
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09126162847
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Purpose:
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To compare differences in modulation transform function ( MTF) between 2 standard spherical monofocal intraocular lenses (IOLs), the hydrophobic acrylic Alcon SA60AT (Bausch & Lomb) and hydrophilic acrylic Rayner Superflex (620H) (Rayner)
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Methods:
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Sixty- eight eyes of 68 patients who have undergone phacoemulsification cataract surgery, were studied. In group 1(n=39) the hydrophobic Alcon SA60AT IOL and in group 2(n=29) the hydrophilic Rayner Superflex (620H) IOL were implanted. Best corrected visual acuity (BCVA) at far was 20/20. MTF test was performed by OPD ScanIII (Nidek) under the natural pupil and in a mesopic condition at the first and third months after surgery.
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Results:
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T-test results shows that there were no differences between the 2 groups in the mean of MTF during 2 follow ups (p=0.788), but after separating between 2 IOLs, according to the repeated measure ANOVA test results: the MTF significantly increase at third months post-op.( p=0.033) Also repeated measure ANOVA results demonstrates that MTF is influenced by IOL types and refractive errors over time.(p= 0.029, p= 0.025)
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Conclusion:
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It seems that IOL materials and residual small defocus are 2 important factors which could influence on an optical quality of vision in pseudophakics. Although Hydrophilic IOLs provide better MTF over time, it need long term study.
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Attachment:
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