Speaker suggests best method to address irregular astigmatism
NEW YORK — The best method to treat irregular astigmatism around cataract surgery may be determined by looking at the corneal topography in the pupil zone, according to a speaker here.
“Look at the central cornea. If the central cornea is relatively symmetric, then a toric IOL can be reasonable,” Uday Devgan, MD, said at OSN New York 2013.
The topography in the pupil zone — considered along with along with the patient’s history — can show when it is best to treat, Devgan said. Patients who have used rigid gas permeable contact lenses to fix their astigmatism will not do well with a toric lens, he said.
If there is any doubt in the topography reading because of a patient’s inability to fixate, repeating the test is advisable, he said.
Disclosure: Devgan is a consultant for Aaren Scientific, Alcon, B + L, Gerson Lehman Group, LensGen, Omeros, Optimedica. He is a stockholder for LensGen and Specialty Surgical and receives royalties from Accutome Inc.