Can orthokeratology lenses cure astigmatism?

Astigmatism is a problem that many young people have nowadays. Like myopia and hyperopia, it can cause problems in seeing things clearly. At the same time, people with astigmatism will see double images when looking at things. If you want to treat astigmatism, relying solely on correction will not be very effective. The best way is to treat it directly through surgery, or by wearing orthokeratology lenses to help the cornea return to its normal shape, which can also play a role in recovery.

Astigmatism can be treated with orthokeratology lenses.

1. Orthokeratology lenses are specially designed and manufactured based on the myopia condition, eyeball morphology, corneal characteristics and other parameters of myopic adolescents. They are a physical correction method that uses the natural pressure of the eyelids to reshape the cornea, increase the central curvature radius of the cornea, change the corneal surface morphology, and reduce the corneal refractive power, thereby improving vision and effectively controlling the progression of myopia.

2. By wearing orthokeratology lenses "at night when sleeping", myopic teenagers can achieve the effect of not having to wear any glasses during the day. Unlike contact lenses, orthokeratology lenses are made of highly oxygen-permeable materials with an oxygen permeability DK value of over 100 (the national standard stipulates that it is greater than 90). They are used while sleeping, so you can enjoy normal vision during the day. The effect is particularly obvious for children whose eyeballs are developing, and long-term use can effectively prevent and control myopia.

Additional information

Clinical manifestations of astigmatism:

1. Decreased vision

Visual acuity loss is closely related to the degree and type of astigmatism. People with mild astigmatism usually have normal vision, while those with moderate or high astigmatism have poor vision at both far and near distances. Simple astigmatism will cause a slight decrease in vision, while compound astigmatism and mixed astigmatism will cause a significant decrease in vision. If it is not properly corrected, amblyopia may occur.

2. Visual fatigue

Blurred images on the retina require constant fine-tuning, and vision is distorted, so patients with astigmatism, especially those with hyperopic astigmatism, are prone to visual fatigue. Symptoms include eye pain, tearing, headache, especially in the forehead, double vision, and inability to work at close range for a long time.

3. Compensatory head position and squinting

People with highly asymmetric astigmatism in both eyes often tilt their heads in order to see more clearly, which leads to strabismus. The astigmatism can be restored after correction. In order to obtain a larger retinal image, patients sometimes hold objects close like myopic patients. People with high astigmatism often squint when looking at distant or near targets, achieving the effect of pinholes and slits to improve vision. Looking through a pinhole or slit can reduce the effects of astigmatism on vision.