Many people with myopia wear what are called “single vision” contacts to help them see clearly at a distance. They’re called “single vision” because they have one lens strength, or prescription. For nearsightedness, the prescription numbers are negative, with low negative numbers like -1.0D (diopters) indicating low levels of myopia and higher numbers (like -4.0D) indicating higher levels of myopia.
How they work
When you have myopia, your eye focuses light in front of your retina ( the part of your eye that sends images to your brain), rather than on it, making vision blurry at a distance. Contact lenses for myopia help spread out the light rays, moving the focal point back onto the retina, helping you see distant objects clearly. It’s important to note that childhood myopia is often managed differently than myopia in adulthood (more on that below).