Astigmatism Treatment

Written By: Kierstan Boyd Reviewed By: Brenda Pagan-Duran MD Mar. 01, 2015 Usually, mild to moderate astigmatism can be corrected with eyeglasses or contact lenses. While it used to be the case that contact lenses for astigmatism could only be rigid contact lenses (RGPs, also called GP lenses), this is no longer true. Now, soft lenses called toric contact lenses can correct astigmatism. But while soft toric lenses may be appropriate for som...

What Do Astigmatism Measurements Mean?

Written By: Celia Vimont Reviewed By: William Barry Lee MD, Jeffrey Whitman MD OCS Dec. 22, 2016 When you have an eye exam, your eye doctor will test you for astigmatism, a condition that may lead to blurred or double vision. Astigmatism usually is an imperfection in the curvature of your cornea — the clear, round dome covering the eye's front surface. If you wear a contact lens, the lens sits on your cornea. Sometimes, more rarely, asti...

Astigmatism Diagnosis

Written By: Kierstan Boyd Reviewed By: Brenda Pagan-Duran MD Mar. 01, 2015 Your eye doctor will do a comprehensive eye exam, and will use various instruments to measure how your eye focuses light. Your visual acuity will be measured, where you will be asked to read letters on a distance chart to determine the clarity of your vision at a certain distances. You will also have the focusing power of your eyes tested with a series of lenses plac...

What Is Macular Degeneration?

Written By: Kierstan Boyd Reviewed By: Robert H Janigian Jr MD Mar. 01, 2017 Age-related macular degeneration (AMD) is a problem with your retina. It happens when a part of the retina called the macula is damaged. With AMD you lose your central vision. You cannot see fine details, whether you are looking at something close or far. But your peripheral (side) vision will still be normal. For instance, imagine you are looking at a clock with hands. W...

Ceratocone: hábito de coçar os olhos pode causar doença na córnea e prejudicar a visão

Ceratocone: hábito de coçar os olhos pode causar doença na córnea e prejudicar a visão
A ceratocone faz com que a membrana da frente do olho, que é redonda, fique mais fina e com um formato que lembra um cone. De acordo com o Conselho Brasileiro de Oftalmologia, 20% dos transplantes de córnea, feitos no Brasil, são por causa da doença. Ceratocone: hábito de coçar os olhos pode causar doença na córnea e prejudicar a visãoBem Estar--:--/--:-- Ceratocone: hábito de coçar os olhos pode causar doença na córnea e prejudicar a visão ...

Astigmatism Symptoms

Written By: Kierstan Boyd Reviewed By: Brenda Pagan-Duran MD Mar. 01, 2015 Astigmatism symptoms may include blurry vision or areas of distorted vision, eyestrain, headaches, squinting to try to see clearly or eye discomfort. Having these symptoms may not necessarily mean that you have astigmatism, but they do indicate the need for a visit to your ophthalmologist for a complete eye exam. fonte: https://www.aao.org/eye-health/diseases/asti...

What Causes Astigmatism?

Written By: Kierstan Boyd Reviewed By: Brenda Pagan-Duran MD Mar. 01, 2015 Astigmatism is caused by an irregular curvature of the eye's cornea or lens. If your cornea or lens isn't smooth and evenly curved, light rays aren't refracted properly. This is called a refractive error. Astigmatism is one type of refractive error, with blurred or distorted vision at near and far distances. Astigmatism is very common. In most cases, people with asti...

What Is Astigmatism?

Written By: Kierstan Boyd Reviewed By: Brenda Pagan-Duran MD Mar. 01, 2015 Astigmatism is an imperfection in the curvature of your cornea — the clear, round dome covering the eye's iris and pupil — or in the shape of the eye's lens. Normally, the cornea and lens are smooth and curved equally in all directions, helping to focus light rays sharply onto the retina at the back of your eye. However, if your cornea or lens isn't smooth and evenly cu...
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