Manufacturing method of contact lens to correct higher-order aberration of human eyes
A contact lens, high-order aberration technology, applied in glasses/goggles, optics, instruments, etc., can solve problems such as loss of high-order aberration correction function, damage to the cornea, stimulation of the cornea of the eye, etc., to avoid reduction or loss. Effects of Correction Ability
Inactive Publication Date: 2011-01-12
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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The disadvantage of the above two production methods is that the microstructure is located on the surface of the contact lens lens, which may irritate the cornea of the eye, affect the wearing comfort, and even damage the cornea; in addition, the microstructure located on the surface of the contact lens lens may also be damaged by surface contamination or friction and wear. Loss of high-order aberration correction function due to factors such as
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[0027] Such as figure 1 As shown, the lens 2 of the contact lens has a single-layer structure, and the material of the lens 2 is a material (usually a polymer material) with nonlinear optical effects. Poor Phase Microstructure 1.
[0028] Such as figure 2 As shown, the lens of the contact lens has a three-layer structure, and the material of the middle layer 3 is a material (usually a polymer material) with nonlinear optical effects, and the upper and lower layers can be other contact lenses without nonlinear optical effects Material. A phase microstructure 1 capable of correcting high-order aberrations of the human eye is provided inside the intermediate layer 3 . Of course, the lens of the contact lens can also have a more layered structure, as long as one of the middle layers is a material with a nonlinear optical effect, and the phase microstructure 1 that can correct the high-order aberrations of the human eye is arranged on this layer. The middle layer can be made o...
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The invention discloses contact lenses which can adjust the higher aberration of eyes and method for making. The phase microstructure and microstructure element which can adjust the higher aberration of eyes are mounted on the eyeglasses, the method for making is: measuring the data of optical aberration; the three-dimensional refractivity distribution of eyeglasses which can adjust the higher aberration of eyes are calculated according to the data of optical aberration and the diopter adjustment of original eyeglasses; the needed three-dimensional refractivity distribution are manufactured in the contact lens material using the ultra-short wave pulse laser beam. Compared with the present technique, the phase microstructure which can adjust the higher aberration of eyes are mounted or manufactured in the inner of eyeglasses, and the surface of eyeglasses is smooth, so it can't stimulate the cornea and affect the wear comfort degree, and it can't damage the cornea. Additionally, the phase microstructures mounted or manufactured in the inner of eyeglasses can avoid to decreasing or losing the adjust capability caused by pollution or abrasion of the phase microstructures.
Description
technical field [0001] The invention relates to a contact lens, in particular to a contact lens capable of correcting high-order aberrations of human eyes. The invention also relates to a manufacturing method of a contact lens capable of correcting high-order aberrations of human eyes. Background technique [0002] The decline of human eyesight seriously affects a person's normal life, so it must be corrected. Traditional vision correction is mainly achieved by wearing glasses or contact lenses, or through surgical treatment. The main corrections are low-order aberrations such as defocus and astigmatism. In recent years, the rapid development of wavefront sensing technology has made the accurate measurement of human eye high-order aberrations a reality, and also made the correction of human eye high-order aberrations possible. Dr. David Williams from the University of Rochester in the United States and Dr. Junzhong Liang from the University of Heidelberg in Germany believe...
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IPC IPC(8): G02C7/04G02B27/00G02F1/355
Inventor 李斌成张雨东
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI