Having abnormal vision (Refractive Error) can be corrected in several ways to achieve clear vision
1) Spectacles
They have been widely used for a long time. Glasses can reduce the convergence of light for those who are nearsighted and increase the convergence of light for those who are farsighted, for clear vision. There are some limitations, such as inconvenience in playing sports, certain professions, or personality issues.
2) Contact Lenses
Another popular option, but using contact lenses requires caution in maintaining cleanliness to avoid complications, such as infections of the cornea, which can lead to blindness. Therefore, contact lenses should be managed by an ophthalmologist. Moreover, many people may not be able to wear contact lenses due to allergies to the lens or solution. Certain activities are also not conducive to wearing contact lenses, such as being in a dusty, smoky environment, swimming, etc.
3) Refractive Surgery
Developed to solve the problem for those who cannot (or do not want to) wear glasses or contact lenses for various reasons and has been continuously developed for decades, from the Radial Keratotomy (RK) method to using the Excimer Laser for direct corneal surfacing known as Photorefractive Keratectomy (PRK). Currently, the modern method is LASIK, including the latest technology with laser at every step, such as FemtoLASIK and ReLEx. For those with a high degree of vision impairment, which cannot be corrected by the aforementioned methods, inserting supplementary lenses is another treatment option, and the Bangkok Hospital LASIK Center is ready to provide all types of services.
