"iDoctor – Medical Blog"

Purpose: To determine the intersession repeatability of Stratus optical coherence tomography (OCT) measures of retinal thickness in patients with age-related macular degeneration (AMD).Methods: Measurement of retinal thickness was performed over four sessions over 12 weeks using a standardized OCT protocol with the fast macular thickness map in 67 non-treated eyes of 67 patients with AMD enrolled in a clinical trial. The intrapatient standard deviation (Sw) and 95% coefficient of repeatability (CR) (), expressed in [mu]m and as a percentage of mean retinal thickness, were calculated to estimate intersession repeatability.Results: The CR was 32 [mu]m for the average retinal thickness in the central 1 mm A1 subfield [95% confidence interval (CI) 31[ndash]33 [mu]m] and 53 [mu]m

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