No significant differences in keratometry measurements in patients with, without dry eye

A study conducted in Norway found no significant differences in keratometry measurements before cataract surgery between patients with dry eye disease and those without. The study, part of a prospective trial, included 131 patients and used three different optical biometers to assess keratometry. Researchers found that variability in astigmatism was higher among patients with hyperosmolarity for one of the biometers, and eyes with positive noninvasive keratographic breakup time had higher variability in keratometry. The study also noted that dry eye did not significantly affect surgical planning, except for reflection-based keratometry being slightly less reliable in some dry eye patients.

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