Ruby Multifocal Glasses - Last Units

P 0.5: 20-25 Years P 0.75: 25-33 Years P 1.0: 34-45 Years P 1.5: 46-50 Years P 2.0: 51-54 Years P 2.5: 55-58 Years P 3.0: 59-64 Years P 3.5: 65-69 Years P 4.0: 69-74 Years