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- Do zwitterions affect the various color response tests?Albinism is a condition in which melanin pigment is not made. How do you think vision is affected by albinism? When Mrs. Martinez visits her opthalmologist, she complains of pain in her right eye. the intraocular pressure is found to be abnormally elevated. What is the name of Mrs. Martinez's probable condition? What causes it? What might be the outcome if the problem is not corrected?What is the role in vision of the cis–trans isomerization of retinal?