Topic
Corrective lens
About: Corrective lens is a research topic. Over the lifetime, 114 publications have been published within this topic receiving 1535 citations.
Papers published on a yearly basis
Papers
TL;DR: Myopia rates in the Visual Impairment Project generally decrease with age and use of myopic correction has increased in recent times, and myopia was significantly related to education level, occupation, country of birth, and nuclear opacity.
Abstract: Objective To determine the prevalence and risk factors of myopia in urban and rural Victoria, Australia. Participants and Methods The Visual Impairment Project is a population-based prevalence study of eye disease in which both urban and rural adult populations were examined. Refractive data on the participants were collected using logMAR visual acuity, corrective lens measurement, and subjective refraction. All refractive error data were converted into spherical equivalent and myopia was defined at 2 levels: worse than −0.5 diopters (D) and worse than −1.00 D. Results A total of 3271 (83%) urban and 1473 (91%) rural residents were examined. The overall prevalence of myopia worse than −0.50 D in the population was 17% (95% confidence limit=15.8%, 18.0%). Prevalence of myopia decreased from 24% in those aged 40 to 49 years to 12% in those aged 70 to 79 years, and then increased to 17% in people older than 80 years. The younger age groups also had higher usage of myopic corrective lenses throughout their lives than the older age groups, indicating an increased use of myopic corrective lenses in recent times. Myopia was found to be significantly higher in people with higher education levels (χ 2 =119.20, P P 2 =77.62, P 2 =55.26, P Conclusion Myopia rates in the Visual Impairment Project generally decrease with age and use of myopic correction has increased in recent times. Myopia was significantly related to education level, occupation, country of birth, and nuclear opacity.
328 citations
Patent•
11 May 1992
TL;DR: In this paper, an optical body, a positioning element, and a supporting element are shaped as an integral unit and have the same radius of curvature that provides for full adherence of the integral unit to an intact natural lens.
Abstract: An optical body, a positioning element, and a supporting element are shaped as an integral unit and have the same radius of curvature that provides for full adherence of the integral unit to an intact natural lens. The distance between the diametrically opposite portions of the supporting element is at least equal to the distance between Zinn's zonules on which the corrective lens rests.
137 citations
Patent•
13 Oct 2006
TL;DR: An anterior chamber refractive correction lens (RCL) as mentioned in this paper is a custom anterior-chamber refractive lens for visual or optical correction of multiple defects or problems of the eye.
Abstract: An anterior chamber refractive correction lens (RCL), preferably a custom anterior chamber refractive correction lens (c-RCL) for visual or optical correcting multiple defects or problems of the eye.
59 citations
Patent•
12 Mar 1984
TL;DR: A corrective lens for the in-tact natural lens of the eye which utilizes an optical body formed of a material which is compatable with the tissue of the human eye is described in this article.
Abstract: A corrective lens for the in-tact natural lens of the eye which utilizes an optical body formed of a material which is compatable with the tissue of the eye. The optical body is positioned against the natural lens of the eye and is held in place immediately adjacent the natural lens of the eye.
56 citations
Patent•
18 Apr 2011
TL;DR: In this paper, a linear algebraic transform (performing essentially the inverse of the Lensmaker's Equation) can be applied and enact matrix manipulation that when rendering the graphical display to autocompensate for a viewer's visual abnormalities, can result in a distorted screen that is equivalent to the inverse lens prescription.
Abstract: A digital screen rendering resolution adjustment can allow users who are conventionally dependent upon corrective lenses to view the digital screen to, after the resolution adjustment, view the contents of this screen with 20×20 vision (considered normal vision), without the use of these corrective lenses. A linear algebraic transform (performing essentially the inverse of the Lensmaker's Equation) can be applied and enact matrix manipulation that when rendering the graphical display to autocompensate for a viewer's visual abnormalities, can result in a distorted screen that is equivalent to the inverse of a corrective lens prescription. A screen rendering customization to autocompensate for a user's visual impairment can be applied for each eye in 3D capable devices due to the inherent nature of 3D to display separate images per eye. A unique algebraic transform matrix manipulation can be performed for each of the two images and can provide a more exact corrective lens prescription rendering simulation than for single image rendering for a display.
54 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 3 |
| 2020 | 2 |
| 2018 | 4 |
| 2017 | 8 |
| 2016 | 7 |
| 2015 | 4 |