Random Changes of Accommodation Stimuli: An Automated Extension of the Flippers Accommodative Facility Test

Current Eye Research
Carles OteroJaume Pujol

Abstract

To study the accommodative dynamics for predictable and unpredictable stimuli using manual and automated accommodative facility tests Materials and Methods: Seventeen young healthy subjects were tested monocularly in two consecutive sessions, using five different conditions. Two conditions replicated the conventional monocular accommodative facility tests for far and near distances, performed with manually held flippers. The other three conditions were automated and conducted using an electro-optical system and open-field autorefractor. Two of the three automated conditions replicated the predictable manual accommodative facility tests. The last automated condition was a hybrid approach using a novel method whereby far and near-accommodative-facility tests were randomly integrated into a single test of four unpredictable accommodative demands. The within-subject standard deviations for far- and near-distance-accommodative reversals were (±1,±1) cycles per minute (cpm) for the manual flipper accommodative facility conditions and (±3, ±4) cpm for the automated conditions. The 95% limits of agreement between the manual and the automated conditions for far and near distances were poor: (-18, 12) and (-15, 3). During the hybrid unpr...Continue Reading

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Mar 23, 2017·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Carles OteroJaume Pujol
Jul 7, 2017·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Paula Bernal-MolinaRobert Montés-Micó
Oct 21, 2017·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Carles OteroJaume Pujol

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Citations

May 21, 2019·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Carles OteroJaume Pujol
Dec 1, 2020·Investigative Ophthalmology & Visual Science·Masakazu HirotaTakashi Fujikado

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