Certified Ophthalmic Medical Technologist (COMT) Practice Exam

Which type of vision does not typically require correction whether in an adult or a child?

1. Normal vision

2. Myopia

3. Hyperopia

4. Astigmatism

The correct answer is: Normal vision

Normal vision refers to the ability to see clearly without any corrections. Individuals with normal vision have a refractive state that allows light entering the eye to be focused precisely on the retina, leading to a sharp perception of images at various distances. This condition does not require glasses, contact lenses, or any other forms of optical correction since the eye's optical system is functioning optimally. In contrast, myopia (nearsightedness), hyperopia (farsightedness), and astigmatism involve inconsistencies in how light is focused in the eye. Myopia occurs when light is focused in front of the retina, making distant objects appear blurry. Hyperopia, on the other hand, results in light being focused behind the retina, which can make near objects appear blurry. Astigmatism is caused by an irregular shape of the cornea or lens, leading to distorted or blurred vision at various distances. Each of these refractive errors typically requires corrective measures to achieve clear vision. Therefore, the only condition listed that does not require correction is normal vision, as it signifies a properly functioning vision system.