The lack of clarity in wearing corneal reshaping lenses may be due to unsuitable prescription at the time of fitting, progression of myopia after prolonged use, or wear and tear of the lenses, contamination and eye diseases. Keratoplasty lenses, also known as OK lenses, is one of the more popular means of myopia correction and prevention and control, but its production process is complex and requires a high degree of professionalism on the part of the practitioners and producers. If you choose to use irregular channels for fitting, it may result in mismatch of prescription, and OK lenses need to be replaced and re-adjusted in about one and a half years. In addition, if you do not pay attention to the cleaning and care of the lenses, it is likely that there will be contamination of the lens protein precipitation and other phenomena, thus affecting the effect of its use; there may also be damage to the lens on the corneal epithelium and other levels of the cornea caused by friction and cuts and so on, and in serious cases, there can be corneal infections such as ulcers, and other further impact on the visual acuity. It is recommended that the use of keratoplasty lenses and review should be carried out in a professional and qualified organization, and that the lenses should be strictly cared for and regularly followed up for inspection, and that problems should be detected in a timely manner and a suitable disposal method should be selected under the advice of professional personnel.