[Functional signs indicating retinal detachment].

Purpose: Retinal detachment is a rare but potentially blinding disease. Incidence of retinal detachment is stable in France, in spite of argon laser prophylaxis.

Method: We have performed a prospective study on 100 patients with reghmatogenous, idiopathic retinal detachment.

Detection and genotyping of the hepatitis C RNA in tear fluid from patients with chronic hepatitis C.

Tear fluid from 51 patients with chronic hepatitis C virus (HCV) infection was analyzed for the presence of the hepatitis C RNA to assess the potential role of this fluid in virus transmission. HCV sequences were amplified from sera and tear fluids by nested polymerase chain reaction using primers from the 5' non coding region of the virus genome. Positive samples were genotyped by the LiPA procedures.