Product Code: 4156Description: ZYL Top 49Frame Colour: CrystalDioptres: +8.00DPrism / Lens: OU10 ^ B10U4156 Aspheric Prismatic Half-Eye SpectaclesPart No:4156 Technical SpecificationsDescription: ZYL Top 49 Frame Colour: Crystal Dioptres: +8.00D Prism / Lens: OU10 ^ B10U