When a cat’s eye lens cracks, you should immediately take the cat to the pet hospital for examination and treatment. It may be caused by eye inflammation, irritation or keratitis. It is best to detect it as soon as possible and deal with it as soon as possible. Pay attention to the hygiene of the cat's living environment, and wear an Elizabethan ring on the cat during treatment to prevent the cat from scratching its eyes due to itching, which may cause serious wound infection and affect recovery.