For the patient, after a short trial period, the level of vision can be improved to a certain extent, even though it is not yet possible to obtain ideal naked-eye vision as in the case of night-time wear and morning pick-up. This also allows patients to have peace of mind and an initial understanding of the power of keratoconus.
For the practitioner, a trial fitting is even more significant for keratoconus fitting. First, the trial helps the practitioner predict the outcome of the treatment.
Secondly, after the trial fitting, the physician can adjust the fitting parameters according to the patient's performance. Experts said that although advanced equipment can detect a large amount of data, it is necessary to verify and fine-tune the data in order to ensure that the most realistic condition of the patient can be detected and the most suitable lenses can be fitted to the patient.
Finally, the trial can also determine whether a patient is a good candidate for keratoconus. Experts emphasize that not all myopic patients are suitable for this physical myopia treatment method, but the instrumentation is unable to take all factors into account during the test, so it is necessary to go through the trial fitting session for the physician to determine whether the patient is suitable or not.
Without a fitting session, the chances of successful fitting of keratoplasty lenses are around 80%, but after a fitting session, the chances can be increased to more than 98%.