Method and system for determining prescription for eye of person
An eye and prescription technology, applied in the field of determining the prescription of the wearer's eyes, can solve the problems of impractical measurement, insufficient skills of optometrists, and inability to afford prescription measurement needs.
Pending Publication Date: 2022-05-17
ESSILOR INT CIE GEN DOPTIQUE
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] Today's optometrists use accurate but cumbersome devices that require lengthy and impractical measurements to assess a wearer's prescription
[0006] Especially in developing countries, optometrists may be few and far between and fairly low-skilled, and may not be able to afford costly prescription measurement needs
Method used
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[0069] The present invention relates to a method and system for determining a prescription for a human eye. Such a system is adapted and configured to implement a method according to the invention for determining a prescription for an eye of a person.
[0070] The prescription includes a set of optical characteristics, such as spherical power, cylindrical power, cylinder axis, subaddition, and prescription prisms, determined by an ophthalmologist to correct the wearer's visual defect.
[0071] refer to figure 1 and figure 2 , the system 10 according to the invention is configured to communicate with a mobile device 12, in particular a smartphone. For example, system 10 may communicate with or via mobile device 12 in a wired or wireless manner.
[0072] Preferably, the system is adapted to be fastened to the housing 14 of the mobile device 12, such as figure 1 and figure 2 shown.
[0073] figure 1 The system 10 is shown before being secured to the mobile device 12, and...
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The invention relates to a system (10) for determining a prescription for an eye (2) of a person, the system being configured to communicate with a mobile device (12), the system comprising:-at least one first light source (16) adapted to illuminate the eye with first light (20) having a first optical wavelength; -at least one second light source (18) adapted to illuminate the eye with second light (22) having a second optical wavelength different from the first wavelength; and-a computing module (40) comprising a memory (42) and a processor (44) arranged to execute program instructions stored in the memory to: measure photographic optometry of the eye at the first wavelength based on at least one picture of the eye recorded when the eye is illuminated with a first light; measuring photographic optometry of the eye at the second wavelength based on at least one picture of the eye recorded when the eye is irradiated with a second light; a prescription for the eye is determined based on photographic optometry measured at the first wavelength and photographic optometry measured at the second wavelength.
Description
technical field [0001] The present invention relates to a method and system for determining the prescription of a wearer's eye. The invention further relates to a corresponding computer program product and computer readable medium. The invention further relates to a method for providing an ophthalmic lens adapted to a wearer's prescription. Background technique [0002] The optical lens is usually determined to be then manufactured according to the wearer's instructions. For example, in the case of ophthalmic lenses for correcting or improving vision, the ophthalmic lenses are determined according to the wearer's prescription corresponding to the wearer's vision requirements. [0003] A person's eye prescription can be determined by measuring the refraction of the eye, also known as photorefraction or photoretinoscopy. The principle of photographic optometry involves projecting light into the eye during flash photography and then examining the path of the light emerging f...
Claims
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IPC IPC(8): A61B3/103A61B3/00
CPCA61B3/103A61B3/0025A61B3/028A61B3/0008A61B3/14
Inventor H·德罗西M·佩卢克斯S·鲍缇嫩
Owner ESSILOR INT CIE GEN DOPTIQUE