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Study may settle whether early or delayed vitrectomy is better
Vitrectomy is being evaluated in a nationwide multicenter controlled clinical trial.The National Eye Institute (NEI) is initiating the study. It will compare risks and potential benefits of vitrectomy performed soon after severe vitreous hemorrhaging (in eyes with proliferative diabetic retinopathy) and after waiting a year before operating.According to the Research to Prevent Blindness (RPB) Foundation, diabetic retinopathy "is the most rapidly growing cause of blindness. In 1930, it was the causative factor in less than 1% of all new cases of blindness in the United States. Today, it is responsible for more than 15% of all newly reported cases." An estimated 300,000 or more Americans are at risk of suffering from the condition.The NEI's associate director, William F. Raub, PhD, appearing at an RPB-sponsored science writers' seminar in Reston, Va, noted that this is the second major
Medical News. JAMA. 1976;235(23):2463–2470. doi:10.1001/jama.1976.03260490003001
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