Here is another article giving instructions as to how to buy eyeglasses online. The author has the general idea down and I also should emphasize the importance of having an update prescription. I should add to this that if you would like to measure temple length, etc, the best place to start is by measuring the glasses you already have. In my opinion, buying glasses online is a low-risk, high-reward venture. You may not feel 100% confident with what you order, but chances are it will work out well, and in the end you’ll have only spent $40 or $50 instead of $400 or $500.
Sometimes we are so busy in our lives that we don’t have time to fix dinner, let alone purchase new eyewear. The Internet has made it easier than ever to buy eyewear online with just your prescription and your personal taste.
Get a copy of your prescription. Before you buy eyewear online you must have your current prescription. Your optometrist will give you a copy of your most current prescription if you’ve had an exam in the past 12 months. Ask your optometrist to include the pupil distance or PD in your prescription. You’ll need this when ordering online.
Know your face shape. (editor’s note: see my post, “Your Face Shape Matters”) Some eyewear looks better on a certain shape face and because you won’t be able to try on the eyewear, it’s important to know what will look good on you. Most online eyewear stores will have a chart explaining which glasses fit best on your face shape.