Refractive Error, Types & Treatment of RE
Glasses (or spectacles) and contact lenses are two of the most common ways of correcting refractive errors. In eyes with normal vision, light focuses on the light-sensitive retina at the back of the eye. Once the retina senses light, it converts the light into the image that you see.
In refractive errors, the eyes are unable to focus light on the retina. This results in blurred vision. The solution is glasses or contact lenses. These bend the beam of light so it focuses properly on the retina. This should restore clear vision.
Normal vision: In normal vision, light rays from an object focus on the retina.
Refractive error: A refractive error is when the light rays focus either in front of or behind the retina. This causes blurred vision.
Types of Refractive Errors:
The four most common types are:
- Short Sight (Myopia)
- Long Sight (Hyperopia)
Type of Refractive Error
Knowledgebase of Refractive Error
Near-sightedness, far-sightedness, and astigmatism can occur at any age. The risk of presbyopia increases with age. Adults older than 35 are most commonly affected.
Those with a family history of refractive errors are at a greater risk.Read More
The most common sign is blurry vision. Other symptoms include:
- Double vision
- Difficulty reading
- Seeing rings around bright lights
- Squinting or squeezing your eyes to see better
- Eye strain
Key Points to Remember
- Regular eye check-up is a must! As you grow, your eyes grow too. Your lens strength may need to be updated.
- If you or your child have a refractive error, all of your children should have an eye checkup
- Whatever you choose – contact lenses or glasses – you MUST take care of them properly and wear them constantly, according to the doctor’s advice.
- Vitamin A rich foods are good for eye health, but they are not a cure
- Glasses will not make your eyes stronger or weaker. They will allow you to see better with your current eyesight.