September 11, 2007
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Study: One CCT measurement sufficient

STOCKHOLM, Sweden — There was no clinically significant difference in measuring central corneal thickness at different time intervals in patients, a physician said here.

Muhammad Babar Elahi, MD, presented the findings of the retrospective study at the European Society of Cataract and Refractive Surgeons meeting. He and colleagues studied 273 patients divided into two groups: those with ocular hypertension and those with normal tension glaucoma. Forty-nine eyes had multiple CCT measurements at different time intervals, and the researchers found there was no clinically significant difference in the CCT readings.

"There is no clinically significant difference in CCT when measured at different time intervals, and therefore, it is acceptable to only measure it on one occasion," Dr. Elahi said.