100 degrees anti blue light and presbyopia/recommended for those under 49 years old
Anti-blue presbyopia 150 degrees/recommended 50-54 years old
Anti blue light and presbyopia 200 degrees/recommended for ages 55 to 59
Anti-blue presbyopia 250 degrees/recommended 60-64 years old
Anti blue light and presbyopia 300 degrees/recommended for ages 65 to 69
Anti blue light presbyopia 350 degrees/recommended for ages 70-74
Anti blue light presbyopia 400 degrees/recommended age 75 and above