Abstract: corneal contact lens has its own characteristics in controlling myopia. Corneal contact lens can become a part of the whole optical system with the movement of the eye, which reduces the problems of vertex distance change and eccentric fixation of the traditional eye., Myopia is a common and frequently occurring disease that seriously endangering adolescents. In China, the incidence rate of myopia is increasing, and it tends to become younger. How to prevent the development of myopia has become an important social problem. How can children effectively and safely improve their eyesight?, In this regard, Pediatric ophthalmologists pointed out: “The most convenient way to correct myopia is to wear frame glasses. However, complete correction of central ametropia can not stop the progress of myopia. For Chinese myopia children, traditional monocular glasses will increase peripheral retinal hyperopia defocus while correcting central ametropia, especially for patients with moderate myopia. This is the reason why myopia continues to deepen after correction of central ametropia Reason. “, Compared with traditional monocular glasses, progressive lenses can slow down the development of myopia to a certain extent., Compared with the advantages of RGP and frame glasses, corneal contact lens has its own characteristics in controlling myopia. Corneal contact lens can become a part of the whole optical system with the movement of eyeball, so as to reduce the change of vertex distance of traditional eyes and the problem of gaze away from the heart. Compared with traditional glasses, corneal plastic lens can delay the growth of ocular axis and the progress of myopia., We know that the principle of keratoscope is to reduce the thickness of the epithelium and stroma in the central part of the cornea and increase the thickness of the middle and peripheral part of the cornea. Compared with normal cornea, the peripheral cornea is relatively steeper, resulting in more curved imaging on the retina. Therefore, the delay of myopia progression is related to the change of peripheral retina from relative hyperopia to relative myopia. The results showed that after wearing for 3 months, the central and peripheral diopters of rigid corneal contact lens did not change significantly, while the peripheral diopters of corneal shaping lens were relatively short-sighted, and the central diopter developed significantly to hyperopia., How can children effectively and safely improve their eyesight?, Ophthalmologists say that compared with other methods of correcting and treating myopia, orthokeratology has obvious advantages:
myopia is a common and frequently occurring disease that seriously endangering adolescents. In China, the incidence rate of myopia is increasing, and the incidence of myopia is becoming more and more younger. How to prevent the development of myopia in adolescents is an important social problem. How can children effectively and safely improve their eyesight?
for this, Pediatric ophthalmologists pointed out: “The most convenient way to correct myopia is to wear frame glasses. However, complete correction of central ametropia can not stop the progress of myopia. For Chinese myopia children, traditional monocular glasses will increase peripheral retinal hyperopia defocus while correcting central ametropia, especially for patients with moderate myopia. This is the reason why myopia continues to deepen after correction of central ametropia Reason. ”
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can slow down the development of myopia to a certain extent compared with traditional monocular glasses. Compared with RGP and frame glasses,
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corneal shaping lenses have their own characteristics in controlling myopia. The corneal contact lens can become a part of the whole optical system with the movement of the eye, thus reducing the problems of vertex distance change and eccentric fixation of the traditional eye. Compared with traditional glasses, corneal plastic lens can delay the growth of ocular axis and the progress of myopia.
we know that the principle of corneal plastic lens is to reduce the thickness of the epithelium and stroma in the central part of the cornea and increase the thickness of the middle and peripheral part of the cornea. Compared with normal cornea, the peripheral cornea is relatively steeper, resulting in more curved imaging on the retina. Therefore, the delay of myopia progression is related to the change of peripheral retina from relative hyperopia to relative myopia. The results showed that after wearing for 3 months, there was no significant change in the central and peripheral diopters of rigid corneal contact lenses, while the peripheral diopters of corneal shaping lenses were relatively short-sighted, and the central diopters developed significantly to hyperopia.
how can children effectively and safely improve their eyesight?
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ophthalmologists said that compared with other methods for correcting and treating myopia, corneal shaping lens has obvious advantages:
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① it can quickly reduce diopter, significantly improve naked eye vision and facilitate daily activities;
② improve visual therapy and visual function, so that children with poor vision can obtain the best corrected vision;
③ can control the rapid growth of ocular axis. Compared with other methods, the myopia control effect is accurate;
④ reduce the burden of wearing glasses during the day, which is conducive to family monitoring;
⑤ physical therapy for myopia does not destroy corneal tissue and can change retrogradely. Generally, after stopping wearing for 2 weeks to 1 month, corneal morphology and corneal thickness can return to the original normal level;
⑥ the design and use method can be adjusted at any time and can be worn flexibly;
⑦ suitable for any age to meet the needs of special patients;
⑧ standardized use management can achieve long-term safety.