Chooses an implementation of the OPI to use.
A character string that is one of the following.
Returns TRUE if successful, FALSE otherwise.
Andrew Turpin <[email protected]>
David B. Henson, Shaila Chaudry, Paul H. Artes, E. Brian Faragher, and Alec Ansons. Response Variability in the Visual Field: Comparison of Optic Neuritis, Glaucoma, Ocular Hypertension, and Normal Eyes. Investigative Ophthalmology & Visual Science, February 2000, Vol. 41(2).
A.M. McKendrick, J. Denniss and A. Turpin "Response times across the visual field: empirical observations and application to threshold determination". In submission, August 2013.
Please cite: A. Turpin, P.H. Artes and A.M. McKendrick "The Open Perimetry Interface: An enabling tool for clinical visual psychophysics", Journal of Vision 12(11) 2012.
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