Both naked and corrected visual acuity are important indicators in an eye exam. Visual acuity is an indicator that describes the degree of visual acuity, or the ability of the eye to distinguish the smallest details of a scene. Naked vision is the best visual acuity that can be achieved without the use of any optical corrections, such as frames or contact lenses. Corrected visual acuity is the best visual acuity that the eye can achieve with refractive corrections such as frames and contact lenses. If the corrected visual acuity is lower than normal, it indicates that there are non-refractive functional and structural abnormalities in the eye, such as cataracts, fundus lesions, amblyopia, etc. that cause low vision. Below normal bare eye vision can be caused by either the aforementioned pathologies or refractive disorders such as myopia, hyperopia, astigmatism, etc. Inconsistency between corrected visual acuity and bare eye visual acuity indicates the presence of refractive error, discrepancy, and instability due to refractive disorders.