How to correct astigmatism
Astigmatism is a common vision problem, mainly manifested by symptoms such as blurred vision and eye fatigue. In recent years, with the popularization of electronic devices, the incidence of astigmatism has gradually increased, becoming one of the health topics of public concern. This article will combine the hot topics and hot content on the Internet in the past 10 days to introduce you to the correction methods of astigmatism in detail and provide structured data for reference.
1. Basic concepts of astigmatism
Astigmatism is caused by uneven curvature of the cornea or lens, causing light to fail to focus to a point on the retina, causing blurred vision. Astigmatism is usually divided into two types: regular astigmatism and irregular astigmatism. Regular astigmatism is the more common and can be corrected with glasses or contact lenses.
| Astigmatism type | Features | Correction method |
|---|---|---|
| regular astigmatism | The curvature of the cornea is uneven, but there are certain rules | Glasses, contact lenses, laser surgery |
| Irregular astigmatism | Uneven and irregular corneal curvature | Hard contact lenses, corneal transplantation |
2. Common symptoms of astigmatism
Symptoms of astigmatism vary from person to person, but common manifestations include:
| Symptoms | Description |
|---|---|
| Blurred vision | Blurry when looking at distant or near objects |
| eyestrain | Feeling tired after using your eyes for a long time |
| headache | Pain, especially in the forehead or around the eyes |
| Decreased night vision | Vision becomes significantly worse in low light |
3. Correction methods for astigmatism
According to popular discussions on the Internet in the past 10 days, the methods for correcting astigmatism mainly include the following:
1. Wear glasses or contact lenses
This is the most common method of correcting astigmatism. By wearing glasses or contact lenses with cylinder lenses, the uneven curvature of the cornea can be compensated for so that light can be correctly focused on the retina.
| Correction method | Advantages | Disadvantages |
|---|---|---|
| glasses | Simple, safe and economical | May affect appearance and be inconvenient during exercise |
| contact lenses | Beautiful, wider field of view | Requires regular cleaning, may cause dry eyes |
2. Laser surgery
Laser surgery (such as LASIK, PRK) corrects astigmatism by changing the shape of the cornea. In recent years, laser surgery technology has continued to advance and has become the choice of many people.
| Surgery type | Suitable for the crowd | recovery time |
|---|---|---|
| LASIK | Thick cornea and moderate astigmatism | 1-2 days |
| PRK | Thin cornea and higher astigmatism | About 1 week |
3. Rigid Contact Lenses (RGP)
For irregular astigmatism, rigid contact lenses (RGP) are an effective correction method. RGP lenses fit the surface of the cornea to provide clearer vision.
4. Visual training
Some patients with mild astigmatism can improve their symptoms through visual training. Training includes eye movements, focusing exercises, etc., but the effects vary from person to person.
4. Daily suggestions for preventing astigmatism
In addition to correction methods, preventing astigmatism is equally important. The following are prevention suggestions that are hotly discussed across the Internet:
| Suggestions | Specific measures |
|---|---|
| Proper use of eyes | Avoid staring at screens for long periods of time and take breaks every 20 minutes |
| maintain correct posture | Keep an appropriate distance when reading or working |
| balanced diet | Eat more foods rich in vitamin A, such as carrots and spinach |
| Regular inspection | Get an annual vision exam |
5. Summary
Although astigmatism is common, vision problems can be effectively improved through scientific correction methods and daily prevention. If you suspect that you have astigmatism, it is recommended to go to a professional eye hospital for an examination as soon as possible to choose a correction plan that suits you. I hope this article can provide you with valuable reference!
check the details
check the details
en
