Excimer laser phototherapeutic keratectomy ptk has been used to treat anteriorly located corneal pathology since 1990 however most published studies thus far have been composed of small numbers of patients with limited duration of follow up the present study is one of the largest domestic ptk series with one of the longest mean follow ups forty patients were followed for or 6 months . Excimer laser phototherapeutic keratectomy ptk is an important tool in the management of superficial corneal pathology it works well in the treatment of anterior corneal dystrophies and degenerations but we are learning that it may have a role in the treatment of certain patients with deeper corneal pathology indications also are being expanded to treat much less common conditions and . Introductioncalcific band keratopathy cbk is a relatively common chronic corneal degeneration and various forms of treatment are mentioned in the literaturecases descriptiontwo patients 89 an. Excimer laser phototherapeutic keratectomy surgical strategies and clinical outcomes peter s hersh mdl234 yochanan burnstein md3 jonathan carr mdz gupta etwaru md3martin mayers md23 purpose to assess the different strategies and analyze clinical outcomes of excimer laser phototherapeutic keratectomy ptk for a variety of superficial corneal disorders
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