Orthokeratology mirror is designed to combine central arc and peripheral arc in order to correct myopia and prevent corneal malformation more effectively. The central arc is mainly responsible for the correction of myopia, which can adjust the refraction of light by changing the curvature of cornea, so that the focus can be accurately focused on the retina, thus improving vision. The function of the peripheral arc is to disperse the light at the edge, reduce the extrusion of the central arc on the cornea, and prevent the cornea from deforming during wearing. This design aims to balance the correction effect and the needs of corneal health, and provide comprehensive vision correction and comfortable wearing experience.
Myopia is because the eyes are too long or the cornea curvature is too large, which causes the light to focus on the eyes before reaching the retina. Orthokeratology corrects myopia by changing the shape of cornea to make it closer to normal state. The design of the central arc considers that myopia mainly occurs in the central area of the visual field, so the shape of this area is adjusted to make the central light focus correctly. However, this adjustment may cause some pressure on the cornea, so it is necessary to introduce peripheral arc into the design to alleviate this pressure and protect the health of the cornea.
The design of the peripheral arc not only helps to relieve the central arc from squeezing the cornea, but also can disperse the peripheral light and reduce eye fatigue. In the process of wearing orthokeratology lens, the movement of eyeball will make the cornea suffer different degrees of force, and the existence of peripheral arc can balance the distribution of these forces and reduce the discomfort to the cornea. In addition, the peripheral arc also helps to maintain the stable shape of the cornea and prevent its deformation. This design concept not only pays attention to the correction effect, but also pays attention to the user's comfort and corneal health.
In addition to the design of orthokeratology lens, the wearer also needs to pay attention to some basic care and use methods during use. First of all, the orthokeratology mirror should be cleaned regularly to prevent bacterial growth and dirt accumulation. Secondly, pay attention to the wearing time, avoid continuous use for a long time, and give your eyes a proper rest time. In addition, regular eye examinations should be carried out to understand the health status of the cornea, and the lens power should be adjusted and replaced in time to ensure the stability of myopia correction effect and the health of the cornea.
Generally speaking, the design of orthokeratology lens takes into account the division of labor and cooperation between central arc and peripheral arc, aiming at providing more effective correction effect for myopia patients and taking into account the health of cornea. This design concept not only pays attention to the improvement of vision, but also pays attention to the wearer's comfort and eye health during use. Through reasonable design and correct use, orthokeratology can become a safe and effective myopia correction tool, bringing clear vision and comfortable use experience to patients.