Astigmatism occurs when the cornea—the transparent front surface of the eye—has an irregular shape, resembling a football rather than a perfectly round basketball. This uneven curvature causes light ...

Abstract: This paper presents a measurement system based on the transmission fringe deflectometry, which is designed to facilitate the rapid attainment of the free-form lens optical parameters, ...

The original Bifocal Lenses In Nearsighted Kids (BLINK) Study showed that having children with myopia wear high-add power multifocal contact lenses slows its progression. Now, new results from the ...

The researchers found that the mean axial length and spherical equivalent refractive ... switched from multifocal to single-vision contact lenses, and myopia progression increased by −0.17 ...

Summary: New research demonstrates that high-add multifocal contact lenses significantly slow myopia progression in children, with benefits that persist even after discontinuation. The lenses, ...

The original Bifocal Lenses In Nearsighted Kids (BLINK) Study showed that having children with myopia wear high-add power multifocal contact lenses slows its progression. Now, new results from the ...

Thin lenses have a bright future A new economical way to create compact lenses brings simplicity and scalability Date: January 16, 2025 Source: University of Tokyo Summary: Paper-thin optical ...

While it's a manual-focus lens, it is equipped with electronic contacts, enabling electrical communication between the lens and the body, supporting the transfer of Exif information and enabling ...

Now that we have Circle to Search, Google Lens has been updated so that it immediately starts the camera viewfinder upon launch on Android and iOS. Previously, tapping the Google Lens shortcut in ...

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years, which has given me a front row seat for the DSLR to mirrorless transition, the ...