Journal of cataract and refractive surgery · 2008
Calculating the optimal rotation of a misaligned toric intraocular lens.
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Tseng Santos S, Ma Joseph J K
Аннотация
PURPOSE: To present a formula for calculating the theoretical optimal position of a toric intraocular lens (IOL) that is rotationally misaligned.
SETTING: Private practice in an academically affiliated setting.
METHODS: Using equations for astigmatic decomposition, a formula to calculate the optimal rotation of an implanted toric IOL requiring only the power and axis of the IOL and the total eye astigmatism was derived.
RESULTS: The optimal rotational position can be obtained from the derivation.
CONCLUSION: The formula calculates the rotation an implanted toric IOL must undergo to minimize an eye's manifest astigmatism.
SETTING: Private practice in an academically affiliated setting.
METHODS: Using equations for astigmatic decomposition, a formula to calculate the optimal rotation of an implanted toric IOL requiring only the power and axis of the IOL and the total eye astigmatism was derived.
RESULTS: The optimal rotational position can be obtained from the derivation.
CONCLUSION: The formula calculates the rotation an implanted toric IOL must undergo to minimize an eye's manifest astigmatism.