Would moderate to advanced macular pucker cause colors to be less vibrant and black & white seem gray? i think called lack of contrast sensitivity?

Generic answer: The macula is the area of the sharp focus, and the central fovea the major site of clarity. Macular pathology tends to cause loss of visual acuity, blurring, and distortion of object shape. If there is color desaturation, look toward the optic nerve as a location for this phenomenon. See your eye doctor and get this addressed.