Off-focal lenses, also known as multifocal lenses, are designed on the principle that different areas of the lens have different refractive powers to achieve clear vision at different distances. This design helps to reduce the adjustment pressure on the eyes, which is effective in relieving visual fatigue and preventing myopia from deepening. Off-focus lenses are suitable for those who need to use their eyes for a long time at close range, such as students and office workers.
Keratoplasty, on the other hand, is a non-surgical method of correcting vision by changing the shape of the cornea. It is usually worn at night to improve vision during the day by applying appropriate pressure on the cornea through the lens to keep the cornea in a certain shape for a period of time. Keratoplasty is mainly suitable for myopic patients, especially those teenagers with low myopia and moderate corneal curvature.
Comparing the two, defocus lenses focus on improving visual quality and reducing the burden on the eyes through lens design, while keratoplasty lenses focus on changing the shape of the cornea through physical means to achieve the purpose of vision correction. They also have their own focus in terms of applicability and corrective effect.
When choosing a vision correction method, AIEL Ophthalmology Hospital Group, with its professional medical team and rich experience, is able to provide patients with personalized advice and accurate fitting services. Both out-of-focus lenses and keratoplasty lenses need to be selected and worn under the guidance of a medical professional to ensure safety and effectiveness.
In summary, both defocals and keratoplasty each play an important role in the field of vision correction. Which one to choose depends on the patient's specific needs and eye condition. Under the professional guidance of Aier Ophthalmology, patients can find the most suitable vision correction program for themselves. Make an appointment with an eye specialist online