We take pride in customer satisfaction and guarantee that if you aren't happy with your lenses, contact us within 90 days and we'll provide a solution that you are happy with!

The guideline for all eyeglass lens production is ANSI standards for ophthalmic lens production. We guarantee that every lens that we produce adheres strictly to ANSI optical standards, ensuring that your lenses function as perfectly as possible.

ReplaceALens offers a one year warranty against any manufacturer defects. We do include a FREE anti-scratch coating on all our lenses, though the warranty DOES NOT cover scratching. We have extended warranties available that do cover scratching for an additional cost.

We recommend a current, not expired, prescription from an eye doctor. We can also duplicate the prescription off any pair of complete glasses at your risk.

You cannot measure your PD yourself. The PD (pupillary distance), tells us where to place the optical center of the lens horizontally. There are a few options to provide your PD: 1. We can read the PD off any pair of prescription lenses that worked for you. 2. You can call any lens producer that has made lenses for you before and they may have it on file. 3. You can have your PD professionally measured. 4. You can email us a picture taken of you with a cell phone wearing the glasses you are sending in, from 6 feet away, with a level head.

The pupil (or segment) height, which tells us where to place the optical center of the lens vertically. This is especially necessary for multi-focal lenses but important for all lenses. 1. We can copy this off of your current Rx lenses. 2. To dot your pupils yourself, put your glasses on where they normally sit, look into the distance with a level head, and have a family member or friend place a dot on the lens at the location of the center of your pupils. 3. You can email us a picture taken of you with a cell phone wearing the glasses you are sending in, from 6 feet away, with a level head.

Select your new eyeglass lenses (You already have at this point in our process). Add options, add to your cart, and checkout to complete your order online. Use a new, valid prescription or we can copy the prescription that is currently in the lenses.

Print the order confirmation & mail with your frames to ReplaceALens. If you don't have a printer, simply write down your order number and include it in your shipment. Also, be sure to protect your frames with sufficient packaging. You can have a prepaid shipping label emailed at an additional cost so you don't have to leave home. View the shipping options during the checkout process.

We replace your lenses with precision and care, and ship them back for FREE Priority USPS! Average processing time after we receive frames is 1-2 weeks.