Anti-blue light presbyopic 100 degrees/recommend under 49 years old
Anti-blue light presbyopic 150 degrees/recommend 50-54 years old
Anti-blue light presbyopic 200 degrees/recommend 55-59 years old
Anti-blue light presbyopic 250 degrees/recommend 60-64 years old
Anti-blue light presbyopic 300 degrees/recommend 65-69 years old
Anti-blue light presbyopic 350 degrees/recommend 70-74 years old
Anti-blue light presbyopic 400 degrees/recommend over 75 years old