Vision Archives

The Long-Term Side Effects of Monovision Contact Lenses

Written By Lauren Anderson

Monovision contact lenses are an innovative solution for people with presbyopia. But some people worry about the side effects they can cause.

Monovision contacts are generally safe and non-invasive. However, some people do find visual trade-offs that persist beyond the expected time it takes to get used to them.

I’ve done the research so you don’t have to. This article summarizes numerous studies to give you the most accurate information on what the science says about the long-term side effects of monovision contact lenses.

What Does 20/25 Vision Mean?

Written By Rachel Shapiro

Have you just gotten an eye exam and been told you have 20/25 vision? You may be confused about what exactly that means.

You probably know that 20/20 vision is the ‘average.’ But where does 20/25 fit on that scale? And more importantly, does it mean you need glasses?

Let’s get to the bottom of it!

Glasses, contacts, and an eye prescription

How Long Are Eye Prescriptions Good For?

Written By Lauren Anderson

If you wear glasses or contacts, you should have an expiration date printed on your prescription. You may be wondering, how long are eye prescriptions good for typically?

In the U.S., prescriptions for glasses usually expire after one or two years. Most contact lens prescriptions are valid for one year.

Eye doctors also have to consider things like age, eye conditions, and the general health of the patient before they decide on an expiration date.

Let’s get into how long eye prescriptions are good for in the U.S. and why some expire sooner than others.

Understanding 20/200 Vision: What It Means for Your Eyes

Written By Vivian Cummings

Have you or a loved one been told you have a visual acuity of 20/200? You may be wondering what exactly that means.

Visual acuity is the measure of the clarity or sharpness of your vision. To put it simply, someone with 20/200 vision needs to be at 20 feet to see what a person with ‘normal’ 20/20 vision can see at 200 feet. That’s a pretty significant decline in vision.

Let’s get into what 20/200 vision is and correction options.

Woman wearing an orthokeratology contact lens

Lens for Orthokeratology: A Complete Guide to Ortho-K Treatment

Written By Lauren Anderson

Imagine being able to wake up in the morning with corrected vision, without having to use glasses or contact lenses all day. That’s the idea behind orthokeratology, usually shortened to Ortho-K.

Ortho-K has become increasingly popular for children with progressing myopia, adults who aren’t fans of daytime lenses, and people who aren’t ready for laser eye surgery.

We’re going to explain what a lens for orthokeratology is, how these lenses reshape the eye, and what you should realistically expect from this treatment.

The Long-Term Side Effects of Monovision Contact Lenses

What Does 20/25 Vision Mean?

How Long Are Eye Prescriptions Good For?

Understanding 20/200 Vision​: What It Means for Your Eyes

Lens for Orthokeratology: A Complete Guide to Ortho-K Treatment

Understanding 20/200 Vision: What It Means for Your Eyes