Harm and sequela of orthokeratology

The hazards of orthokeratology include dry eye, corneal injury, corneal infection, etc. 1. When patients with dry eye wear orthokeratology for a long time, it can cause changes in the function of lacrimal glands in patients 'eyes, resulting in reduced tear secretion in patients, which further leads to dry eye in patients. 2. Corneal injury If the patient wears orthokeratology lenses for a long time, it is easy to cause hypoxia of corneal epithelium, causing corneal congestion and edema, resulting in corneal injury of the patient. 3. Corneal infection Contact lenses need to be worn for a long time. If the patient does not do a good job of disinfection, it is easy to cause bacterial infection, resulting in corneal infection of the patient, causing keratitis. Corneal scar patients after corneal ulcer, if the ulcer site is repaired, hyperplastic connective tissue to fill the depressed part of the patient's corneal ulcer, can form corneal scar. 2. Inflammatory lesions occur in the cornea of patients with corneal neovascularization. After corneal inflammation subsides, the tissues at the lesion site can repair themselves, and new blood vessels may grow into the cornea of patients to form corneal neovascularization. 3. Corneal infection in blind patients may cause corneal perforation and secondary intraocular infection if not treated promptly, leading to atrophy of the patient's eyeball and blindness.