American Board of Opticianry (ABO) Practice Test 2026 – The All-in-One Guide to Master the American Board of Opticianry Exam!

Question: 1 / 400

What does a prescription with both spherical and cylindrical corrections suggest about the patient’s vision?

The patient has normal vision

The patient requires correction for simple myopia

The patient has astigmatism along with other refractive errors

A prescription that includes both spherical and cylindrical corrections indicates that the patient has astigmatism in addition to potentially other refractive errors, such as myopia or hyperopia.

Spherical corrections address issues related to myopia (nearsightedness) or hyperopia (farsightedness) by adjusting the uniform curvature of the lens to focus light properly onto the retina. In contrast, cylindrical corrections specifically target astigmatism, which occurs when the cornea or lens is irregularly shaped, leading to distortion in vision.

When a prescription includes both types of corrections, it reflects the complexity of the patient's visual needs, confirming the presence of astigmatism alongside a possible spherical refractive error. This multifaceted need for correction highlights that the patient does not have normal vision and requires a tailored approach to achieve optimal sight.

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The patient is at risk for diabetic retinopathy

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