Stargardt's disease may cause difficulty distinguishing which colors?

Study for the Visual Impairment Education Certification Test. Explore multiple choice questions, with hints and explanations for each. Prepare thoroughly!

Stargardt's disease damages the macula, where cones responsible for color vision are concentrated. When the long- and middle-wavelength cones (red and green) are affected, distinguishing red from green becomes difficult, especially with central vision involvement. This pattern shows up on color vision testing as red-green confusion, which is why that choice is the best fit. Blue-yellow discrimination depends more on S-cone pathways and is not as consistently affected early, and seeing only black and white isn’t the typical way this condition presents, while orange versus purple isn’t a distinctive hallmark.