Accuracy Of Theoretical Iol Formulas For Panoptix Intraocular Lens; Review Of 2018 Cases For A Refractive Outcomes According To Axial Length.

To evaluate the accuracy of theoretical intraocular lens (IOL) formulas for the Acrysof IQ Panoptix TFNT IOL based on the axial length.

Keye Eye Center, Seoul, Korea

The accuracy of the following formulas were analyzed in 2018 eyes: Barrett Universal II, SRK/T, Holladay 1, Hoffer Q, and Haigis. The refractive prediction error (RPE), and the mean absolute error (MAE) were analyzed in hyperopic (axial length [AXL] < 22.5 mm), normal (22.5 mm ≤ AXL < 26.0 mm), and myopic (AXL ≥ 26.00 mm) eye groups.

MAE was lowest when using the Barrett Universal II formula (0.30 ± 0.24 D). In the subgroup analysis, the Barrett Universal II formula showed the lowest MAE in the normal group (0.30 ± 0.23 with adjustment), whereas the Holladay 1 and Hoffer Q formulas showed the lowest MAE in the hyperopic group (0.32 ± 0.22 D and 0.32 ± 0.21 D, respectively). The Haigis formula showed the lowest MAE in the myopia group (0.24 ± 0.19 D). The Barrett Universal II formula did not perform well in hyperopic eyes with higher astigmatism ( P = .013), wider white-to-white (WTW; P < .001), and shorter AXL (P = .016).

Study results suggest that the Barrett Universal II formula performed best for the TFNT00 IOL in the overall study population. However, Holladay 1 and Hoffer Q were more accurate in hyperopic eyes, particularly when the eyes had higher astigmatism, wider WTW, and shorter AXL.