ZCB00 인공수정체의 부분결합간섭계와 초음파 방식의 술 후 굴절 예측치 차이

Formula Comparison for Intraocular Lens Power Calculation Using IOL Master and Ultrasound for the ZCB00 IOL

Purpose: To evaluation the accuracy of the IOL power calculation formulae measured by IOL Master<sup>&reg; and applanation ultrasonography for the Tecnis ZCB00 IOL Methods: We performed a retrospective study of 170 eyes in 121 patients who underwent cataract surgery in our hospital with AMO Tecnis ZCB00 IOL.s. The SRK/T formula was used to predict the patient&#39;s implanted IOL power. Differences in the predicted refractive errors between IOL Master<sup>&reg; and ultrasonography were analyzed and factors attributed to the differences were also analyzed. Three months after cataract surgery, mean numeric error and mean absolute error were analyzed. Results: SRK/II and SRK/T formulas calculated using ultrasonography showed differences compared to the same formulas calculated using IOL Master<sup>&reg;, in which hyperopic shift was also demonstrated. No definite factor was attributed to the differences between the 2 methods. Although the 3 formulas of IOL Master<sup>&reg; showed no significant difference in refractive errors, the SRK/T formula calculated using IOL Master<sup>&reg; showed the least mean absolute and numeric errors. Conclusions: IOL Master<sup>&reg; is considered more suitable when determining proper AMO Tecnis ZCB00 IOL power in cataract surgery. The hyperopic shift should be considered when calculating the IOL power using only ultrasonography. J Korean Ophthalmol Soc 2014;55(4):527-533