Acquired 'tritan' deficiencies in macular pathology.

14 patients with maculopathy (18 eyes affected, 10 eyes clinically normal) were examined using the HRR plates, the Farnsworth F2 (tritan) plate, the Farnsworth panel D15 test, the Nagel anomaloscope (model I) and on a 'blue-green' equation for 2 degrees and 11 degrees fields on the Moreland anomaloscope. The correlation of tritan-like responses to each test and the differences between the 2 degrees and 11 degrees equations are discussed.