When you order prescription eyeglasses online, you need to provide your prescription information. For a lot of people, trying to fully understand a prescription can be a little confusing. Fortunately, your prescription card may be simpler than it first appears. When you understand your details, you can more easily order a great new pair of prescription eyeglasses.
Please read the originial post here: https://marveloptics.com/blog/eye-health/understanding-your-eyeglass-prescription/