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Treating Refractive Errors in the Eyes

An eye and refractive power technology, applied in optics, intraocular lens, optical components, etc., can solve problems such as visual image quality degradation

Active Publication Date: 2016-08-31
THE VISION CRC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with this approach, the visual image quality will be degraded

Method used

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  • Treating Refractive Errors in the Eyes
  • Treating Refractive Errors in the Eyes
  • Treating Refractive Errors in the Eyes

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Embodiment Construction

[0029] Figure 5 Diagram showing the refractive state of the eyes of 1155 children with myopia in the horizontal meridian of the limbic retina, where measurements were obtained in both nasal and temporal quadrants. The horizontal (independent) axis represents the edge angle at which the measured value was obtained. Measurements in the nasal retina represent temporal visual fields, while measurements in the temporal retina represent nasal visual fields. The vertical (subordinate) axis is the amount of defocus in diopters (D) of light rays on the retina relative to the amount of defocus along the visual axis of the eye. Thus, positive values ​​indicate relative hypermetropic defocus, while negative values ​​indicate relatively myopic defocus. Temporal and nasal defocus was measured on-axis and at 20, 30 and 40 degrees from the optical axis. The eye had an axial spherical equivalent refractive error of -2.27 ± 0.81D. All measurements were obtained using an open-field Shin Nip...

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Abstract

A lens for the eye comprising a first power profile having a retina receiving images through the fovea, a second power profile having a retina receiving images through the nasal edge, and a retina having an image receiving through the temporal edge The third refractive power profile of . The first power profile is selected in such a way as to provide clear or acceptable vision, and the second and third power profiles are selected in such a way as to affect edge image positions.

Description

[0001] Associate application [0002] This application claims the benefit of Australian Patent Application 2010903334 filed 26 July 2010, the entirety of which is hereby incorporated by reference. technical field [0003] The present invention generally relates to methods and devices for treating refractive errors of the eye. Certain embodiments may be adapted to affect the rate of progression of the refractive error by slowing the progression of the refractive error and / or preventing the progression of the refractive error. Certain embodiments are applicable to control myopia progression. Other embodiments may be adapted to control hyperopia progression. Background technique [0004] Myopia is an eye disorder in which far objects cannot be clearly focused but near objects can be clearly focused. Images of distant objects are drawn to focus in front of the retina; that is, "at a distance", the eye's focusing power is too strong. This condition can be corrected through t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/14A61F2/16G02C7/02
CPCG02C7/02G02C7/04G02C7/047G02C2202/24G02C7/048G02C7/041A61F2/142G02C7/045G02C7/06G02C7/042
Inventor A·霍P·R·桑卡里杜尔格E·L·史密斯三世B·A·霍尔登
Owner THE VISION CRC LTD