corneal radiography

Corneal phototherapy is one of the methods for the treatment of exposed keratitis. Exposure keratitis (exposurekeratitis) is common in various lesions of cleft palate, causing corneal exposure and blink dyskinesia, tears can not normally wet the cornea. Corneal epithelial damage occurs. The patient is seated in the backlight, and the examiner holds the disc handle to place the disc in front of his or her eyes and sits opposite the patient, about 0.5 m apart. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Inappropriate people: no obvious symptoms of corneal inflammation. Normal value The lesions are mostly located in the lower third of the cornea. The initial cornea and conjunctival epithelium are dry and rough, and the conjunctival hyperemia and hypertrophy at the exposed site gradually merge into a large epithelial defect and a new blood vessel is formed by punctate erosion. Suppurative corneal ulcers occur during secondary infection. None of this phenomenon is normal. Clinical significance Abnormal results due to exposure of the corneal surface, excessive evaporation of tears, corneal epithelial dryness, blur, necrosis, shedding, ulceration or corneal epithelial keratinization, accompanied by matrix infiltration and turbidity. Patients in need of examination for exposed keratitis patients. Precautions Taboo before inspection: touch by hand. Requirements for inspection: Protect and maintain the wet state of the cornea. Inspection process The patient is seated in the backlight, and the examiner holds the disc handle to place the disc in front of his or her eyes and sits opposite the patient, about 0.5 m apart. The thumb and forefinger of the other hand are separated from the eye of the eye, and the image of the concentric ring of the black spot on the cornea is observed from the central hole, and the cornea can be inspected in all directions, and all the corneas can be inspected. Not suitable for the crowd Inappropriate population: no obvious symptoms of corneal inflammation.