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Intraoperative aberrometry versus preoperative biometry for intraocular lens power selection in patients with axial hyperopia.
- Source :
- Indian Journal of Ophthalmology; Dec2022, Vol. 70 Issue 12, p4295-4299, 5p
- Publication Year :
- 2022
-
Abstract
- <bold>Purpose: </bold>This study was conducted to evaluate the accuracy of intraoperative aberrometry (IA) in intraocular lens (IOL) power calculation and compare it with conventional IOL formulas.<bold>Methods: </bold>This was a prospective case series. Eyes with visually significant cataract and axial hyperopia (AL <22.0 mm) underwent IA-assisted phacoemulsification with posterior chamber IOL (Alcon AcrySof IQ). Postoperative spherical equivalent (SE) was compared with predicted SE to calculate the outcomes with different formulas (SRK/T, Hoffer Q, Haigis, Holladay 2, Barrett Universal Ⅱ and Hill-RBF). Accuracy of intraoperative aberrometer was compared with other formulas in terms of mean absolute prediction error (MAE), percentage of patients within 0.5 D and 1 D of their target, and percentage of patients going into hyperopic shift.<bold>Results: </bold>Sixty-five eyes (57 patients) were included. In terms of MAE, both Hoffer Q (MAE = 0.30) and IA (MAE = 0.32) were significantly better than Haigis, SRK/T, and Barrett Universal Ⅱ (P < 0.05). Outcomes within ±0.5 D of the target were maximum with Hoffer Q (80%), superior to IA (Hoffer Q > IA > Holladay 2 > Hill-RBF > Haigis > SRK/T > Barrett Universal Ⅱ). Hoffer Q resulted in minimum hyperopic shift (30.76%) followed by Hill-RBF (38.46%), Holladay 2 (38.46%), Haigis (43.07%), and then IA (46.15%), SRK/T (50.76%) and Barrett Universal Ⅱ (53.84%).<bold>Conclusion: </bold>IA was more effective (statistically significant) in predicting IOL power than Haigis, SRK/T, and Barrett Universal Ⅱ although it was equivalent to Hoffer Q. Hoffer Q was superior to all formulas in terms of percentage of patients within 0.5 D of their target refractions and percentage of patients going into hyperopic shift. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03014738
- Volume :
- 70
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Indian Journal of Ophthalmology
- Publication Type :
- Academic Journal
- Accession number :
- 160678719
- Full Text :
- https://doi.org/10.4103/ijo.IJO_1307_22