Focus point detection of contact lenses and contact lenses capable of being tried on

Abstract

The invention provides focus point detection of contact lenses and the contact lenses capable of being tried on. Detection steps are as follows: wearing the contact lenses capable of being tried on the surfaces of the corneas of a user, and adjusting the contact lenses to cover the surfaces of the corneas through blinking by the user, and to fit the surfaces of the corneas, generating focus points in any quadrant area between a longitudinal axis and a horizontal axis by virtue of the contact lenses capable of being tried on, marking, taking out the contact lenses capable of being tried on, preparing the contact lenses which are in proper radian change to the outer side from the focus points according to focus points marked on the surfaces of the contact lenses capable of being tried on so as to conform to the arc curved surfaces of the radian of the corneas of the eyes of the user who tries the contact lenses on and achieve the purpose of obtaining accurate focus point positions conforming to the eyes of the user.

Description

technical field [0001] The invention relates to a focus point detection of a contact lens and a contact lens for try-in, especially a contact lens that can be used for try-in to obtain a correct focus point. The base points are detected, and focus points are obtained in adjacent quadrants of each detection base point after the user tries them on, so as to achieve the purpose of making the contact lens conform to the correct focus point position of the user's eyes. Background technique [0002] With the research and development and innovation of various electronic and electrical products, it has brought many conveniences to people's daily life and work, especially the emergence of a large number of 3C electronic products has caused the popularization of applications in communications and the Internet, resulting in many People are immersed in the use of 3C electronic products, and use 3C electronic products in large quantities for a long time. Whether they are office workers, ...

AI Technical Summary

Problems solved by technology

[0003] However, before dispensing contact lenses for contact lens wearers, please refer to the Figure 4 , Figure 5 As shown, it is necessary to select try-in frame glasses that meet the corrected vision degree of the user. After confirming the corrected vision degree of the user, the contact lens A is made for wearing on the corneal surface of the user's eye. And the user is blinking so that the contact lens A can cover and stick to the surface of the cornea. However, at present, when the contact lens A is made, the focal point position B of the contact lens A is made at the exact center point (that is, the longitudinal axis and the horizontal axis The center of the intersection point of the axis) for the curvature of the contact lens A to extend from the center point to the outside to make a contact lens A with a fixed curvature, but because the eyeball, white of the eye and surrounding cornea of ​​each user's eye will There are curved surfaces with different radians. Not every user’s cornea has the same radian. Therefore, the position B of the eye focus point of different users will also be different, and it is not located at the center C of the second eye. If the contact lens The focus point position B of A is fixed at the center point position, which will cause the user to blink and adapt to contact lens A for a longer time when wearing contact lens A, and the focus point position B of contact lens A is adjusted to meet the After the curvature of the cornea of ​​the user's eyes, it is easy to cause contact lens A to not completely cover the center of the cornea, but to form a deviation, skew, etc., which ...

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