1. Upper and lower tear menisci in the diagnosis of dry eye

    Purpose: To measure the upper and lower tear menisci in aqueous tear deficiency (ATD) dry eye patients using real-time optical coherence tomography (OCT), and to determine the most effective meniscus variables for the diagnosis of dry eye. Methods: Eyes of 48 pre-screened ATD patients were compared with those of 47 healthy subjects. Upper and lower tear menisci were imaged simultaneously by real-time OCT immediately after blinking. The height, radius, and cross-sectional area of upper and lower tear menisci were obtained. Results: The tear meniscus radius, height, and cross-sectional areas were significantly smaller in dry eye patients than healthy subjects (P ...
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