The pupillary distance of the glasses cannot be adjusted if they do not fit properly, and the glasses should be refitted.
The pupillary distance of the eye is a very important parameter, it is the distance between the optical centers of the lenses of both eyes, and it should correspond to the distance between the pupils of both eyes of the patient. If the pupillary distance of the eyeglasses does not match the patient’s pupil distance, it is generally more difficult to adjust and the patient will need to have a new eyeglass fitting.
If the pupillary distance is not suitable, it may lead to dizziness, eye distension, even double vision, distortion of vision and other uncomfortable symptoms after wearing the glasses, and the patient is prone to visual fatigue, which may lead to a rapid increase in refractive error.
It is recommended that patients with refractive error visit a regular hospital to assess their condition and follow the doctor’s instructions for treatment.