From a theoretical perspective, the reason why the prescription of colonoscopy has become a challenge lies in the fact that patients wearing cheap eyeglasses near me will have a certain adaptation period. Even if the new glasses have the same degree of comfort as the original prescription, patients will still feel different from the original glasses.

The reason is that changes in the new cheap eyeglasses near me lens base arc, material, refractive index, Abbe number, frame material, surface curvature, shape, weight, etc. will all affect corrected vision and visual quality. In theory, if only changes in the composition of the spherical lens appear in the new prescription, patients will be more likely to adapt.

However, if the astigmatic (columnar) components in the new prescription also change, or if the astigmatic lens is medium or high in height during the first prescription, it will be relatively difficult to adapt.

The changes in the composition of the prism can cause significant changes in the patient's perception of the distance, size, shape, and other aspects of the object in a short period of time. It can even cause distortion of the visual space, such as object tilting during walking, and even severe discomfort such as headaches and nausea.

If given a period of adaptation, most people will adapt to the new prescription and overcome the discomfort when they first wear it. It is worth noting by optometrists that this short-term adaptation is a normal physiological reaction, and the key issue is whether the wearer can adapt before rejecting the glasses without being unwilling to wear new glasses.