Purchase this article with an account.
Miriam Lopez-Salas, Jesus Arrieta-Camacho, Arturo Ramirez-Miranda, Eduardo Chavez-Mondragon; Predictive values of three different formulas for Intraocular lens implantation in eyes with high myopia. Invest. Ophthalmol. Vis. Sci. 2013;54(15):822.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
To compare the accuracy of different IOL calculation formulas using the IOL Master and/or ultrasound biometry in eyes with long axial length, since it is still a challenge to obtain the desired refractive target after cataract surgery in patients with high myopia.
Retrospective review of the charts patients who underwent phacoemulsification with implantation of an intraocular lens and high. After complete eye examination, axial length was measured using the IOL Master and/or ultrasound biometry with immersion technique as needed. The IOL power was predicted SRK/T, SRKII and Haigis formulas in three different groups respectively.
We included 72 cataract procedures performed by different surgeons between March 2012 and April 2012. At a 6 month follow-up visit the correlation between the achieved vs the attempted spherical equivalent was obtained with lineal regression. The highest correlation was obtained with the SRK-II formula vs the SRKT and Haigis formulas (p=<0.05).
In eyes with high axial myopia with an AL longer than 26.0 mm, the 3 formulas had a mild correlation between the achieved and the attempted spherical equivalent. The surgeons choice to trust the Haigis formula lowered the correlation in that group, and in our study the SRKII being the less trusted formula, since the surgeons added 1-2 diopters to the predicted value for emmetropia, had the highest correlation. The results of this study provide useful information to aid the choice of IOL power in patients with high axial myopia during daily practice in our center. However, a large-scale multicenter prospective clinical trial is recommended to generalize our results.
This PDF is available to Subscribers Only