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Researcher challenges study: No night driving difference in SP acrylic IOLs

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Randall J. Olson

WAILEA, Hawaii — Randall J. Olson, MD, led a study to test the validity of a 2015 study that found a trend toward one single-piece acrylic IOL causing more night driving difficulty than another single-piece acrylic IOL.

“In a very rigorous study we could not find a driving difference nor a night driving difference between the two most used single-piece acrylic IOLs used in the U.S.,” Olson said at Hawaiian Eye 2018.

The 2015 study cited possible reasons for the night driving differences such as higher refractive index, edge treatment differences and glistenings, Olson said.

To power the study properly, Olson determined he and his team would need 130 patients in each IOL group.

Olson and his team used a rigorous selection protocol, then used the validated Driving Habits Questionnaire.

They found that most of the questions about driving were mostly significantly the same, Olson said.

“We could not find a driving difference, nor a night driving difference, between the two most used SP acrylic IOLs used in the U.S,” he said.

“It is critical to appropriately size studies to draw important conclusions,” he added.

Their results are published in the Journal of Cataract & Refractive Surgery. – by Abigail Sutton

References:

Olson RJ. Is there a night driving or dysphotopsia difference between the two most common single piece acrylic IOLs. Presented at: Hawaiian Eye; Jan. 13-19, 2018; Wailea, Hawaii.

Beiko GHH. Clin Ophthalmol. 2015;doi:102147/opth.S90886.

Wright AJ. J Cataract Refract Surg. 2017;doi:10.1016/j.jcrs.2016.12.012.

Disclosure: Olson is a consultant for Perfect Lens and on the medical advisory board for EyeGate.