Vision refractive errors are vision problems that occur when the shape of the eye prevents light from focusing directly on the retina. This can result in blurred vision, trouble seeing objects at distance, and difficulty seeing objects up close. Here are the most common types and how an eye doctor can help.

Common Refractive Errors That Affect Vision

1. Myopia

Known as nearsightedness, myopia occurs when the eyeball is too long or the cornea is too curved. It often develops in childhood or adolescence. Light is forced to focus in front of the retina instead of directly on it. 

People with myopia have difficulty seeing distant objects but can see objects up close clearly. An eye doctor will provide prescription glasses or contact lenses crafted to alter incoming images so patients see objects at distance clearly.

2. Hyperopia

Hyperopia, also called farsightedness, is when the eyeball is too short or the cornea is too flat. It's often present at birth and can be genetic. Light then focuses behind the retina instead of directly on it. People with hyperopia have difficulty seeing objects up close but can see distant objects more clearly. Like nearsightedness, it is corrected with prescription lenses.

3. Astigmatism

Astigmatism is a condition where the cornea or lens of the eye is not evenly curved. People are usually born with it and may also experience hyperopia or myopia. This causes light to focus on more than one point on the retina. 

This can result in distorted or blurred vision at all distances and require glasses from an eye doctor to correct. Contact lenses or prescription glasses, which are heavily curved in one direction, can be created to counter cornea irregularities so patients see clearly. 

4. Presbyopia

Presbyopia is an age-related condition diagnosed by an eye doctor. It affects the eye's ability to focus on nearby objects because the lens of the eye loses its flexibility, making it difficult to see objects up close. Presbyopia typically develops around age 40. 

Depending on the extent of the vision problems, an eye doctor may prescribe single lenses, bifocals, which contain two unique lenses, and trifocals, which contain three different lenses. This allows patients to use the glasses for seeing fine print up close and objects farther away clearly.

If you’re concerned about your vision and overdue for an exam, contact Progressive Vision Group of High Point, NC. This eye doctor offers comprehensive vision care services to ensure patients can see clearly. After a complete vision test, they can suggest a wide range of eyeglasses or contact lenses to resolve any problems. Call (336) 841-2028 to schedule an exam and visit their website to learn more about the practice.