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68. Readily visible changes in color contrast are insufficient to stimulate accommodation. Switkes E, Bradley A, Schor C. Vision Res; 1990 Jul; 30(9):1367-76. PubMed ID: 2219752 [Abstract] [Full Text] [Related]
69. Spatial frequency interference effects and interpolation in vernier acuity. Morgan MJ, Watt RJ. Vision Res; 1984 Jul; 24(12):1911-9. PubMed ID: 6534015 [Abstract] [Full Text] [Related]