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G. Garcia–Aguirre, F. Amparo–Pulido; Analysis of Intraocular Lens Calculation Error in Uncomplicated Phacoemulsification . Invest. Ophthalmol. Vis. Sci. 2006;47(13):613.
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© ARVO (1962-2015); The Authors (2016-present)
To determine the intraocular lens (IOL) calculation error in uncomplicated phacoemulsification procedures, and to determine if there are variables that influence such error.
Retrospective revision of data of patients who underwent uncomplicated phacoemulsification and IOL implant between January and April, 2004. The differences between planned and achieved refraction, and the percentage of patients falling within ±0.50 D, ±1.00 D and ±2.00 D of the planned refraction were calculated. The relation between IOL calculation error and axial length, the method to measure such length, the experience of the technician and the formula used was also analyzed.
Data from 885 procedures was reviewed. 471 eyes (362 patients) were included. Average IOL calculation error was –0.305 ±0.825 D. The percentage of patients falling within ±0.50 D, ±1.00 D and ±2.00 D was 48.83%, 77.91% and 97.66%, respectively. There was no relation between IOL calculation error and axial length, the method to measure such length, the experience of the technician and/or the formula used.
Our results are similar to the previously reported from other centers, and may provide reference information that can be used to monitor clinical practice.
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