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The Diaton tonometer measured IOP within 3 mm Hg of the gold standard Goldmann applanation tonometer in a majority of glaucomatous and nonglaucomatous cases, a study found.

Mark A. Latina, MD, a glaucoma specialist at Harvard/MEEI, and colleagues found that the Diaton tonometer (DevelopAll Inc., Staten Island, NY) measured within 3 mm Hg in 83.3 % of eyes when correlated with measurements by Goldmann applanation tonometry.

In an interview with Ocular Surgery News at the Association for Research in Vision and Ophthalmology meeting, Dr. Latina said IOP measurements with the Diaton tonometer are equivalent to Goldmann applanation tonometry. The Diaton device offers a safe, noncontact method of measuring pressure via the eyelid, he said.

“It works,” Dr. Latina said. “It gives you a reasonable estimation of the pressure without having to anesthetize the cornea through a transpalpebral approach.”

Dr. Latina and colleagues presented results of the study in a poster presentation. The study examined IOP measurements in 66 eyes of 33 consecutive subjects; 46 eyes had glaucoma and 20 did not. Measurements were masked, with one researcher using Goldmann tonometry and another using the Diaton.