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Method and apparatus for controlling peripheral image position for reducing progression of myopia

A peripheral and near-sighted technology, applied in intraocular lenses, ophthalmic treatment, eye implants, etc., can solve problems such as visual acuity limitations

Active Publication Date: 2009-03-25
BRIEN HOLDEN VISION INST (AU)
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

It should be noted that useful vision in the context of peripheral vision is a relative term since the density of photoreceptors on the retina decreases away from the fovea; thus there is a physiological argument for decreased visual acuity at the peripheral retina when vision away from the central fovea upper limit

Method used

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  • Method and apparatus for controlling peripheral image position for reducing progression of myopia
  • Method and apparatus for controlling peripheral image position for reducing progression of myopia
  • Method and apparatus for controlling peripheral image position for reducing progression of myopia

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Embodiment Construction

[0070] For those wearers described in the sections above who require good central vision and also require good vision in some selected other directions of gaze, it would be beneficial and advantageous to provide a vision therapy device that can Stimuli are applied to alleviate the refractive error by appropriately manipulating the position of peripheral image points as taught in US7,025,460, but other optical aberrations are reduced for those selected directions of gaze - ie the preferred zone of vision. Additionally, if the vision therapy device is centrifugal, it would be beneficial and advantageous to both control or reduce other optical aberrations across a selected gaze direction as well as control or reduce defocus.

[0071] figure 1 The rationale behind the invention with respect to controlling other optical aberrations is explained. exist figure 1 In, a myopic-prone eye 10 (ie, the eye is or will develop myopia) is treated with a lens 20 using the method taught in US...

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Abstract

A method and apparatus are disclosed for controlling optical aberrations to alter relative curvature of field by providing optical devices and methods comprising the repositioning of peripheral off-axis focal points relative to the retina to produce stimulus for influencing the progression of refractive error while simultaneously controlling the position of the central focal point near to the retina to provide clear central vision and simultaneously providing zones of controlled peripheral defocus and other optical aberrations to improve peripheral vision for select directions of gaze.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to co-pending and commonly assigned US Provisional Patent Applications 60 / 758,316, filed January 12, 2006 and 60 / 782,658, filed March 15, 2006. technical field [0003] The present application generally relates to methods and systems for treating the development of refractive errors. It represents a novel and nonobvious advancement over commonly assigned US Patent No. 7,025,460. [0004] More specifically, the present invention relates to methods, systems, and devices that simultaneously provide sharp sharpness at selected non-central directions and points of vision by controlling off-axis aberrations, thereby addressing the relative curvature of the visual image field. Imaging to slow or eliminate the progression of myopia in an individual. [0005] Myopia (also known as shortsightedness or nearsightedness) is a refractive error of the eye. Refractive errors, the optical condition of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/14A61F2/16A61F9/01
Inventor A·霍恩E·L·史密斯三世P·桑卡里杜尔格B·A·霍尔登
Owner BRIEN HOLDEN VISION INST (AU)
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