Keratoplasty lenses may cause corneal morphology changes, and can also lead to corneal infections, corneal hypoxia and other hazards. 1. Changes in corneal morphology: As patients wear keratoplasty lenses for a long period of time, temporary changes in corneal thickness, corneal curvature and other parameters occur. 2. Corneal infection: After wearing keratoplasty lenses, patients may suffer from eye infections, such as bacterial keratitis and conjunctivitis, due to the lack of attention to cleaning and hygiene when removing or storing the lenses. 3. Poor oxygen permeability: Since keratoplasty lenses are closely combined with the surface of the eye, their air and oxygen permeability is not as good as that of the cornea itself. If it is worn for a long time, it may lead to corneal hypoxia, which may result in eye dryness, dry itching and other uncomfortable symptoms. It is recommended that patients who experience eye discomfort while wearing keratoplasty lenses should consult a doctor in time to assess their condition and undergo treatment under the guidance of a professional doctor.