Purpose: To compare refractive data of Plusoptix AO9 (Plusoptix, Inc., Atlanta, GA) and Spot (Welch Allyn, Skaneateles Falls, NY) photoscreeners with retinoscopy in pseudophakic eyes of children.
Methods: In this prospective study, patients underwent testing with the Plusoptix and Spot photoscreeners prior to their examination by a pediatric ophthalmologist masked to the results of both photoscreeners. Data including testability and estimated refractions were entered into a Research Electronic Data Capture database for statistical analysis. For bilateral pseudophakia, one randomly selected eye was included in the analysis.
Results: Forty-four eyes were included, with a mean age of 7.4 ± 4.8 years. Refraction was estimated in all eyes using retinoscopy, but a refractive estimate was obtained in only 11.3% (5 of 44) of eyes using the Plusoptix binocularly and 63.6% (28 of 44) of eyes using the Spot. Compared to retinoscopy, the Plusoptix showed a mean difference of -0.80, 0.10, and -0.75 diopters (D) for sphere, cylinder, and spherical equivalent, respectively (P > .05). Comparable values for the Spot were 0.18, -0.26, and 0.05 D, respectively (P > .05). Compared to retinoscopy, the Plusoptix showed a mean absolute difference of 1.30, 0.80, and 1.25 D for sphere, cylinder, and spherical equivalent, respectively (P > .05). Similar values for the Spot were 1.38, 0.88, and 0.97 D, respectively (P > .05).
Conclusions: Refraction was estimated in a higher number of pseudophakic eyes of children using the Spot as compared to the Plusoptix. The Spot may be useful to evaluate myopic shift in pseudophakic eyes of children. [J Pediatr Ophthalmol Strabismus. 2016;53(3):146-149.].
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