According to channel 8 when you enter a dark area from a well-lit one (such as driving through a tunnel or going into the house after being in the sun), your eyes need to adapt to the low level of light.
Looking at red light doesn’t affect night vision, though, because rods are not sensitive to it. The retina contains two types of light-sensing cells – rods and cones. The center of the retina has only cones. When light reaches the cones, it is turned into “color” signals. These signals are then sent to the brain. Away from the center of the retina, there are both cones and rods. Rods cannot see colors, but are much more sensitive to light. If you spend a lot of time driving at night and are looking for a new car, you may want to consider buying one with red dashboard lights.
Improving night visionThe longer the rods have been exposed to light and the brighter it is, the longer it takes to get your maximum night vision. If you know you will have to drive at night, stay inside if possible or wear sunglasses during the day.
Besides avoiding sunlight, there are other ways to improve your night vision. If you are driving, don’t look directly at oncoming headlights.
Another tip: When trying to see an object in the dark, don’t look directly at it. There are no rods in the center of your retina, so look sideways at the object. The image will become clearer if you use the rods on the border of your retina. This is not easy for most people, so you’ll need to practice.
Your vision and how you focus can have a negative effect on the skin around your eyes. Dr. Stuart Kincaid sees patients who are dissatisfied with crows feet in the corners of their eyes. Many times this is a result of squinting. Dr. Stuart Kincaid may recommend a blepharoplasty for both the upper and lower lids. This will give a much more alert look. He may also recommend laser resurfacing for the crows feet to smooth out surface lines and wrinkles.
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