Patients with keratoconus and relatively regular astigmatism can benefit from toric IOLs, provided that keratoconus-specific formulae are used for lens power calculation, according to a speaker.
“Our results showed that the Barrett True-K formula provided the most accurate IOL power,” Ehud Assia, MD, said at the European Society of Cataract and Refractive Surgeons meeting.
Calculation of IOL power in patients with keratoconus is challenging and may lead to inaccurate effective lens position and consequently inaccurate corneal power estimation, typically erring on the hyperopic side.