{'fraction_non_alphanumeric': 0.012519561815336464, 'fraction_numerical': 0.006259780907668232, 'mean_word_length': 5.956521739130435, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Delayed sterile keratitis following radial keratotomy requiring corneal transplantation for visual rehabilitation.

Delayed keratitis is an unusual complication of radial keratotomy surgery. A case of documented sterile keratitis involving four adjacent nasal incisions occurred 34 months following a 16-incision radial keratotomy procedure. Multiple cultures and biopsies failed to show a pathogen. The keratitis was confined to the incisional area without involvement of the intervening stroma. A penetrating keratoplasty was necessary to restore useful vision. Clinical and pathological studies documented delayed corneal wound healing.