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A. Kochanov, A. Varavka, I. Balashevich; Higher Order Aberrations in Pseudophakic Eyes. Invest. Ophthalmol. Vis. Sci. 2009;50(13):5582.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate wavefront aberrations of eyes with different types of (intraocular lens) IOL and to study optical quality of eyes after IOL implantation.
Hartmann-Shack aberrometer WASCA Wavefront Analyser ("Carl Zeiss Meditec") was used to measure total and higher order aberrations up to the fourth Zernike (Z) polynomials of 82 eyes (60 patients) after IOL implantation. Patients were divided into four groups based on the type of IOL: group I - IOL SA60AT "Alcon" (35 eyes); group II - Russian T26 model IOL (11 eyes); group III - Russian sapphire IOL (13 eyes); group IV - accommodative IOL Restore SA60D3 "Alcon" (23 eyes). 42 eyes of 21 healthy emmetropes served as controls.
Mean (±St.Dev.) total aberrations (RMS PV OPD) were minimal in the control eyes and group IV eyes: 0.96±0.52 and 0.97±0.49 microns, respectively. Total aberrations were significantly greater in groups I (0.99±0.52 microns), II (1.09±0.59 microns) and III (1.33±0.83 microns) (p<0.01). Higher order aberrations (RMS PV OPD HO) were minimal in group IV and control eyes: 0.37±0.24 and 0.30±0.25 microns, respectively. Higher order aberrations were significantly greater in groups I (0.39±0.26 microns), II (0.41±0.23 microns) and III (0.42±0.25 microns) (p<0.01).
Accomodative "Restore" IOL implantation has minimal total (RMS PV OPD) and high order aberrations levels (RMS PV OPD HO) close to emmetropic eyes. In addition, Hartmann-Shack aberrometry is highly sensitive tool to study optical quality of different types of IOL.
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