Prescription FAQ

  • How to place an order for prescription - step by step

    Start by choosing a frame from our prescription collection. Once chosen, click the "select your lens" button Choose the type of lens you would like and click "next" You will now be prompted "How will you send us your prescription?" After making your selection click "next" You will be notified of ...
  • How do I submit my prescription?

    Please note that a current prescription that includes the doctor’s information, date of service, and signature of the doctor is required to process your order. All prescriptions are checked by our in-house opticians to ensure your glasses are perfect! During the ordering process you will have th...
  • How do I find my pupillary distance (PD) ?

    Your PD is the distance from the center of one pupil to the center of the other in millimeters. This information is necessary to properly center your prescription correctly in your frames. It's important to note that the average PD is between 57 and 65mm. You may have two PD values - one for each...
  • How long will my prescription order take?

    Once you have placed your Rx order, you may be contacted by our team to verify or provide additional prescription information. Once this information is received, your order will be submitted to our lab. Prescription orders and over the counter customer readers lab processing can take up to 3 w...
  • All About Progressive Lenses

    What are progressive lenses? Progressive lenses aid in an eye condition called Presbyopia.  This is a very common vision condition that usually starts around the age of 40 and results in the loss of the ability to focus on near things. If you have an add power listed on your prescription you are...
  • How should I clean my new prescription glasses?

    We strongly recommend purchasing one of our anti bacterial cleaning kits to keep your prescription glasses looking like new.
  • What does the protection plan cover with my prescription glasses?

    The protection plan is a one-time redemption that covers any accidental damage or defects for a period of 2 years. If you have any issues, please contact Customer Service to get your prescription glasses replaced, free of charge.
  • Does DIFF accept FSA or HSA cards?

    DIFF does accept FSA and HSA debit cards with a Visa or MasterCard logo on them. If you don't have one of these debit cards you can get an invoice from our support team to submit to your provider along with any other required documentation. What products are covered by FSA or HSA? All plans are...
  • What type of lenses do you offer?

    DIFF offers premium high index 1.60 with every order and includes anti-reflective coating, anti-scratch coating, hydrophobic coating and ultra violet protection. Upgrade options include: Ultra thin 1.67 lens material for stronger prescriptions, blue light filter technology, photochromic, and pola...
  • Does DIFF offer blue light reading glasses that block harmful HEV and UV light rays?

    Yes, you can get over-the-counter reading glasses in your preferred power or diopter just like you were buying them in-store or from your optometrist. We also offer custom prescription reading glasses that can be made to order according to your prescription.
  • How long should it take to adjust to my new eyeglasses prescription?

    The adjustment period depends on various factors. If you are a first time glasses wearer, it could take up to two weeks to adjust to your new visual aids
  • How severe is my glasses prescription?

    A prescription between +/-.025 to +/-2.00 is considered mild, the range between +/-2.25 to +/-5.00 is considered moderate, and anything greater than +/-5.00 is considered severe.
  • How to buy prescription glasses online?

    The first thing to do before purchasing eyeglasses whether online or in-store, is to get a prescription from your eye doctor, optometrist or ophthalmologist. Once your doctor has determined the proper diopter strength and pupillary distance for your prescription, you can head online to your favor...
  • Should I get thin, high index lenses?

    If your prescription is stronger than -4.00, it would be beneficial to get thin, high-index lenses to decrease the thickness and weight.
  • What do prescription glasses do?

    Prescription glasses are medical devices that correct your vision by allowing your eye to project light on the right spot in your retina. The correct lenses compensate your eye's inability to focus an image onto the retina.