Definition of GOUACHE. 1. : a method of painting with opaque watercolors.2. a: a picture painted by gouache b: the pigment used in gouache. ADVERTISEMENT.. : a method of painting with opaque watercolors. 2. a: a picture painted by gouache b: the pigment used in gouache.
On average, PRK costs between $1,800 and $6,500, depending on the severity of the refractive error and the degree of customization the patient requires. Doctors often price PRK surgery per eye, although most patients will need to correct both eyes.
Advantages of PRK. One of the main risks involved with undergoing LASIK eye surgery is corneal flap complications that occur with the incision that is made. PRK is a more favorable procedure with the elimination of the flap altogether by instead removing the cells with a solution.