Conventional lenses, which are mass produced, are designed and manufactured using “average” prescription powers. As a result, the prescription lenses inherently have power errors in the lenses – most noticeably in the peripheral vision. It is not uncommon for people wearing conventional lenses to experience distorted vision or lack of clarity, or have difficulty driving at night.
Digital lenses are not mass produced. Instead they are tailored made, one lens at a time, for each individual wearer’s prescription – precision engineering without compromise for increased visual clarity over the entire lens area, visual clarity conventional lenses cannot provide.
Many brands of digital lenses are available today. Choosing the best digital lens is important. Digital, free-form lenses refers to the reduction of higher-order aberrations during the manufacturing process, which can produce prescription powers in increments of 0.01 diopters compared to 0.25 diopters found in conventional lenses. Reducing higher-order aberrations, combined with a more precise prescription delivers sharper vision in all conditions and reduces glare experienced when driving at night.
When purchasing digital lenses, it is important to purchase them from a professional eye doctor’s office that has an optician with the knowledge and experience required to properly fit digital lenses and use a prescription from an optometrist who is accustomed to prescribing digital lenses. Exact measurements (both the doctor’s prescription and the optician’s measurements) are necessary to provide the precision necessary to produce tailor-made lenses that will deliver true individualization of the lenses.