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Single vision lenses are the most common lens type and have one prescription power throughout the entire lens. For most people under 45 years old, the same prescription single vision lenses correct for all sight ranges, from close to far, and is the only lens type you need. This is because your eye muscles can flex the lens in your eye to change its focal distances when you’re young. You can be reading and quickly look up into the distance, and your eye will focus on objects farther away.
Single Vision Lenses


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However, as humans age, the eye muscles weaken and crystalline lens hardens. This means that in order to see both far and near, a lens with multiple powers is necessary, like a bifocal or progressive lens. This is called presbyopia and single vision lenses still remain useful for specific focus distances for older eyeglass lens wearers. Single vision lenses correct for one focal length, normally distance, intermediate, or reading. For example, single vision reading lenses can be used for close range, single vision intermediate computer lenses for mid range, and single vision distance for far-away viewing.

With several materials to choose from at ReplaceALens, we can custom design and craft the perfect pair of single vision lenses for you. Your choices include:

  • Plastic(Standard lens material that’s great for low prescriptions)
  • Polycarbonate (Thinner and lighter material with full UV protection and increased shatter resistance)
  • Trivex (Durable material with excellent optical clarity & full UV protection; recommended for rimless style frames)
  • High Index 1.67 (Thin and light material with full UV protection, for higher prescriptions)
  • High Index 1.74 (Thinnest and lightest eyeglass lens material with full UV protection)

The term “Single Vision” means lenses which have a single prescription power. These lenses have the same level of vision correction across the entire lens. Single vision prescription lenses can correct nearsightedness and farsightedness as well as astigmatism. Reading glasses are the most common type of single vision eyeglasses.

Single vision lenses are not the same as progressive lenses. Single vision glasses offer a singular focus for both eyes. This can be for close-up reading, for mid-range sight correction such as when using a computer, or for long distance sight correction, as when driving. Progressive lenses offer a range of vision correction across the same lens.

At ReplaceALens, we fit new eyeglass lenses to virtually any type of existing frames, new or used. This allows you to have a new prescription in the frames you love best, without compromising on style or comfort. When you wear glasses, they should be comfortable. Since there’s no such thing as “one size fits all” when it comes to eyeglass frames, sometimes it takes a lot of time and effort to find the perfect pair of eyeglass frames that look good, feel good, and do the job they were designed to do; help you see clearly and comfortably. We offer all our customers a 100% Satisfaction Guarantee, and we stand behind that guarantee every day. We want you to be happy with the glasses you end up with, so our team works hard to craft the perfect pair of glasses for every customer, every time.

If you have further questions about single vision lenses or would like to speak to us about what type of eyeglasses are best for you, please give us a call at (800) 752-5572, email us at [email protected], send us a message using our online contact form, or stop by and visit us at 7800 East Iliff Avenue, Unit 1 in Denver, CO 80231. We’ve got ABO Certified Opticians Standing by to assist you via phone or email.

Our prices for replacement lenses start at just $49 a pair, and ordering is as simple as 1, 2, 3. We offer a multiple pair discount on orders over $100, and we also offer free priority return shipping on your order, so if you need to return your replacement lenses for any reason, you don’t have to pay for shipping. Because we believe in customer service that goes the extra mile, we will apply an anti-scratch coating to your replacement lenses absolutely free of charge. We’ve been making people happy with their replacement lenses for decades, and we look forward to adding your name to our list of 100% satisfied customers very soon.