American Board of Opticianry (ABO) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the ABO exam with confidence. Our comprehensive resources, including quizzes and study materials, will help you master essential opticianry concepts and pass the American Board of Opticianry exam with ease. Get started today!

Practice this question and more.


Which conditions are classified as refractive errors?

  1. Astigmatism, Glaucoma, Cataracts

  2. Myopia, Hyperopia, Presbyopia

  3. Dry Eye Syndrome, Conjunctivitis, Uveitis

  4. Retinal Detachment, Macular Degeneration, Diabetic Retinopathy

The correct answer is: Myopia, Hyperopia, Presbyopia

Refractive errors are conditions that affect the way our eyes bend and focus light, resulting in blurred vision. Options A, C, and D are not classified as refractive errors. Astigmatism, Glaucoma, Cataracts, Dry Eye Syndrome, Conjunctivitis, Uveitis, Retinal Detachment, Macular Degeneration, and Diabetic Retinopathy are all different types of eye conditions, but they do not fall under the category of refractive errors. Therefore, option B is the correct answer. Myopia, hyperopia, and presbyopia are all classified as refractive errors because they involve errors in the way the eye bends light and focuses it onto the retina.