REPUBLIKA.CO.ID, JAKARTA — Phenomenon eclipse sun The total is expected to occur on April 8, 2024. This rare celestial phenomenon occurs when moon passes between the earth and the sun, causing the moon to cast a shadow on the earth and block the sun’s light.
For those in the path of totality, the area where solar eclipse total visible, this could be an interesting spectacle. But experts say it’s important not to look eclipse directly, as it can have a bad impact on eyesight.
Can a solar eclipse cause blindness?
It is not uncommon for people to hear the statement that looking directly at a solar eclipse can cause blindness. Experts confirm that this is true.
According to the National Aeronautics and Space Administration (NASA), looking at the sun during an eclipse can cause serious damage to the retina. Except for the short total phase of a total solar eclipse.
“That is, when the moon completely blocks sunlight, it is not safe to look directly at the sun without special eye protection for viewing the sun,” the government agency said, quoted from Best LifeWednesday (14/2/2024).
Avoid viewing any part of bright sunlight through a camera lens, binoculars, or telescope without a special solar filter installed on the front of the optic. Because if not, it will immediately cause serious eye injury.
Regular sunglasses will not protect your eyes. If you plan to watch it directly, it is important to know how to view the solar eclipse safely. Prepare adequate protective glasses first.
“Eclipse glasses are not ordinary sunglasses, ordinary sunglasses, no matter how dark, are not safe for seeing the sun,” explained NASA.
People must comply with the international standard ISO 12312-2. The American Astronomical Society warned that during the last total solar eclipse in August 2017, the market was flooded with fake eclipse glasses that were labeled ISO compliant when in fact they had not been properly tested and proven safe.
There is now a recommendation to purchase eclipse glasses from pre-vetted suppliers listed on the Suppliers of Safe Solar Filters & Viewers page. NASA added that if glasses are torn, scratched, or damaged, you must replace them with glasses that are not damaged. Don’t forget to always supervise children who use it solar viewer.
A glance at the sun without protection can damage the eyes. One might wonder, can one quickly catch a glimpse of a solar eclipse without suffering retinal damage? Experts recommend not taking risks, because direct sunlight can cause eye injury.
When sunlight causes burns to the retina, it kills the cells in the retina. You won’t feel any pain. It may take several hours or days before symptoms appear. At that time, there is a possibility that people will experience permanent vision loss.
How to watch the eclipse without glasses
There are several ways to watch a total solar eclipse without protective glasses. The first way is to look through a handheld solar viewer, camera, or telescope. However, these tools must be protected with special lenses that can filter sunlight.
NASA said that if you don’t have eclipse glasses or a handheld solar viewer, you can use indirect observation methods, which don’t make your eyes look directly at the sun. One way is to use a pinhole projector, which has a small opening (for example, a hole punched in an index card) and projects an image of the sun onto a nearby surface.
With the sun behind, one can safely view the projected image. Don’t look at the sun through the eye of a needle.
2024-02-14 07:31:43
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