One of the most common questions our doctors get asked is “why does my eyesight worsen at dusk or dawn?”. The answer has to do with the tiny light-gathering cells at the back of your eyes, located on your retinas.
Why is my vision worse at dusk or dawn? Photoreceptors are Cells in Retina having Rods and Cones For Strong and Weak Light
June 28, 2010
Many of you have heard of rods and cones. These are the cells that gather light at the back of your eyes, known as photoreceptors. The rods and cones have different jobs. The cones are used for sharp, detailed central vision and are most effective during daylight hours. The rods are located more peripherally in your retinas and are more sensitive in low light levels.
Because the cones need so much light to work well, when the light is weak (such as at dawn or dusk), they can’t register sharp vision. And as the light is changing, the rods are not fully active for “night mode”. So this transition period is most difficult for your eyes to adjust to. This is why so many traffic accidents happen at dusk or dawn.
So remember this when you are driving in the morning or evening – reduce your speed because you are actually not seeing as well as you normally do.
Discover Opal's playful and stylish children's eyewear, blending fashion and entertainment with popular licenses that kids love.
Celebrate ØRGREEN OPTICS’ legacy with the 1415 campaign, a tribute to Copenhagen’s oldest postal code. Discover how the city’s canals and creative energy inspire their unique designs.
Explore Etnia Barcelona’s new eyewear collection, where vibrant colors, bold contrasts, and premium acetates create striking designs. Celebrate individuality with frames that exude confidence and style.
Dive into Etnia Barcelona's Underwater campaign, a surreal exploration of the ocean's depths. Discover a mystical AI-created world where vibrant flora, fauna, and mythical beings bring the beauty of the deep sea to life.
Discover Maui Jim sunglasses at Mountain View Optometry, featuring PolarizedPlus2® lens technology for superior glare protection, enhanced colors, and UV defense. Experience unmatched clarity and eye comfort with premium polarized lenses.
Maui Jim Sunglasses Spring-Summer 2025
Thierry Lasry Eyewear Calgary - 2024 Campaign
Thierry Lasry Eyewear Calgary - 2023 Campaign
As a locally owned business, we deeply appreciate your support. Recent events have prompted us to reflect on how many other Canadian companies are also supported when you visit us for eye care services. This month, we are proud to highlight one of our key “Made in Canada” suppliers – ZEISS Vision. Specializing in precision optics, ZEISS spectacle lenses are designed to improve vision in several ways, including sharper vision at night, better contrast, and more natural colours. When you order a set of new ZEISS lenses from MVO, you support a Canadian company employing 250 dedicated staff who work hard to custom build the glasses you will be wearing for (on average) the next two to three years! Thank you for your commitment to keeping your business in Canada!
Visual snow syndrome (VSS) is a condition that causes people to see visual disturbances similar to static on a television. This "visual snow" can be persistent and is often accompanied by other symptoms that can affect daily life. As more people learn about visual snow syndrome, it becomes essential to understand its symptoms, potential causes, and how to manage it.