Question

________________ means that one eye may have a tendency to turn in or out when the subject is not concentrating. In simple terms, they will only be using one eye to see instead of both eyes. When this does happen, one eye usually turns outward somewhat and the measurement is then too large.

A) Not fixating binocularly
B) Amblyopia
C) Strabismus
D) Visual acuity

Answer 1

The condition where one eye turns in or out when not concentrating is called strabismus, which involves the misalignment of the eyes, different from myopia, hyperopia, or astigmatism, which are related to lens shape or power. The option (C) is correct.

Step-by-step explanation:

The condition where one eye may have a tendency to turn in or out when the subject is not concentrating, and they use only one eye instead of both, is known as strabismus. This occurs because the eyes do not align properly, and as a result, one eye may turn in, out, up, or down, away from the focal point. When the eye turns outward and measurements are too large, this could be a specific type of strabismus called exotropia.

Although not mentioned directly in the provided text, it is clear from the context that the condition described in the question is strabismus, distinguishing it from other vision defects such as myopia (nearsightedness), hyperopia (farsightedness), or astigmatism, which relate to issues with the shape or power of the lens and how light rays converge on the retina. Therefore, option (C) is correct.