[Obligation to tolerance and reasonability of cataract extraction (author's transl)].

The reasonability of cataract extractions is mentioned with exposition of the interests of the insuring bodies and of the patient. We discuss individually the terms "medical treatment", "obligation to tolerance" and "reasonability". The surgical method and the general physical assessment of the patient earn special consideration for a "reasonable" cataract extraction. We also discuss the special situation of the surgeon.