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.
Photo refractive keratectomy (PRK) is a type of laser eye surgery designed to correct vision problems like nearsightedness, farsightedness and astigmatism. PRK came before another laser procedure called laser-assisted-in-situ keratomileusis (LASIK), but PRK is still performed frequently and regularly today.