testing in parallel

testing in parallel 

Clinical test performed in such a way that different parameters are examined simultaneously. The effect of one parameter on another can be noticed and the final results appropriately altered. Examples: Parallel-Testing Infinity Balance test; Parallel-Testing Near Balance test; Turville Infinity Balance test.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann