What is Orthokeratology?
Orthokeratology (Ortho-K, commonly known as OK lens) is a non-surgical option for vision correction that can effectively and safely correct myopia and astigmatism in children and adults.
Orthokeratolgy
ORTHO-K
Principle of Vision Correction by Ortho-K
When users wear OK lenses at night, the lenses can exert pressure on the cornea during sleep, thereby changing the curvature of the cornea.
Since the optical properties of the cornea change in response to its curvature, users can enjoy clear vision after removing the OK lenses during the day without the need for glasses or traditional contact lenses.
Principle of Myopia Control by Ortho-K
According to various studies, the OK lens can effectively slow down the progression of myopia in children by 30 to 59%.
Generally, glasses for myopia will cause the focus of peripheral images to be projected behind the retina, forming a signal that induces eyeball lengthening and deepening myopia.
By wearing the OK lens, the peripheral focus can be corrected and projected in front of the retina, forming a signal to slow down the elongation of the eyeball.
Benefits of Ortho-K
Reversibility
The cornea returns to its original shape
after a few days when you stop wearing the lenses
Comfortable to wear and moisturizing
The rounded edge of the lens is very comfortable to wear at home and does not interfere with tear exchange under the lens for moisturizing effect
Effectively control myopia progression
Clinically proven to effectively slow down
the progression of myopia in children by 30 to 59%
Clear vision during the day
Wear at night for at least 6 hours
for clear vision 24/7
without the need for glasses or soft contact lenses
Safe and effective
After years of clinical research, its safety and effectiveness have been confirmed and approved by the U.S. Food and Drug Administration (FDA).
Range of Correction by Ortho-K
Myopia
≦ 6.00 Diopters
Astigmatism
≦ 2.00 Diopters
Suitable Candidates for Ortho-K
Fitting Procedure
＜＜＜ 左右滑
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