TY - JOUR
T1 - Autorefraction versus subjective refraction in a radially asymmetric multifocal intraocular lens
AU - van der Linden, Jan W.illem
AU - Vrijman, Violette
AU - Al-Saady, Rana
AU - El-Saady, Rana
AU - van der Meulen, Ivanka J.
AU - Mourits, Maarten P.
AU - Lapid-Gortzak, Ruth
N1 - Publisher Copyright:
© 2014 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - PURPOSE: To evaluate whether the automated refraction (AR) correlates with subjective manifest (MR) refraction in eyes implanted with radially asymmetric multifocal intraocular lens (IOLs).METHODS: This retrospective study evaluated 52 eyes (52 patients) implanted with a radially asymmetric multifocal IOL (LS-312 MF30, Oculentis, Germany). At 3 months postoperatively, the AR and MR values were compared to determine the correlation between the sphere (S), the spherical equivalent (SE) and the astigmatic components J0 and J45.RESULTS: The difference of mean spherical measurement was +0.98D ± 0.62, with the AR measuring more myopic. The difference of the mean spherical equivalent was +1.11D ± 0.57, again with AR being more myopic. Both these differences were statistically significant (p < 0.001). The astigmatic components showed less differences, with the mean difference of the J0 being -0.09D ± 0.43, and the J45 of +0.04D ± 0.47, which were both not statistically significant (p = 0.123 and p = 0.531, respectively). Correlation analysis of the refractive parameters showed r(2) = 0.067, r(2) = 0.078, r(2) = 0.018 and r(2) = 0.015, respectively, all of which point to a low correlation between the AR and the MR.CONCLUSION: Autorefraction shows poor correlation to manifest subjective refraction with these radially asymmetric multifocal IOLs. The autorefraction systematically underestimates the spherical and spherical equivalent power, while the correlation between the astigmatic components was also low. Autorefraction seems not a valid starting point for manifest subjective refraction with these types of lenses, unless a corrective factor of about +1 dioptre is used.
AB - PURPOSE: To evaluate whether the automated refraction (AR) correlates with subjective manifest (MR) refraction in eyes implanted with radially asymmetric multifocal intraocular lens (IOLs).METHODS: This retrospective study evaluated 52 eyes (52 patients) implanted with a radially asymmetric multifocal IOL (LS-312 MF30, Oculentis, Germany). At 3 months postoperatively, the AR and MR values were compared to determine the correlation between the sphere (S), the spherical equivalent (SE) and the astigmatic components J0 and J45.RESULTS: The difference of mean spherical measurement was +0.98D ± 0.62, with the AR measuring more myopic. The difference of the mean spherical equivalent was +1.11D ± 0.57, again with AR being more myopic. Both these differences were statistically significant (p < 0.001). The astigmatic components showed less differences, with the mean difference of the J0 being -0.09D ± 0.43, and the J45 of +0.04D ± 0.47, which were both not statistically significant (p = 0.123 and p = 0.531, respectively). Correlation analysis of the refractive parameters showed r(2) = 0.067, r(2) = 0.078, r(2) = 0.018 and r(2) = 0.015, respectively, all of which point to a low correlation between the AR and the MR.CONCLUSION: Autorefraction shows poor correlation to manifest subjective refraction with these radially asymmetric multifocal IOLs. The autorefraction systematically underestimates the spherical and spherical equivalent power, while the correlation between the astigmatic components was also low. Autorefraction seems not a valid starting point for manifest subjective refraction with these types of lenses, unless a corrective factor of about +1 dioptre is used.
KW - LS-312
KW - M Plus
KW - autorefraction
KW - cataract
KW - multifocal intraocular lens
KW - radially asymmetric multifocal intraocular lens
KW - refractive lens exchange
KW - residual refraction
UR - http://www.scopus.com/inward/record.url?scp=85027945546&partnerID=8YFLogxK
U2 - 10.1111/aos.12410
DO - 10.1111/aos.12410
M3 - Article
C2 - 24767468
AN - SCOPUS:85027945546
SN - 1755-375X
VL - 92
SP - 764
EP - 768
JO - Acta Ophthalmologica
JF - Acta Ophthalmologica
IS - 8
ER -