Wherever theres only a partial eclipse - you need to keep those solar specs on the whole time. And parents beware: Eye doctors urge strict adult supervision for eclipse watchers under 16 years old. Or grab a kitchen colander - that casts images of the eclipsed sun onto a screen at least 3 feet away. If you can see any light besides the sun, its time for new solar specs.Eclipse glasses can be worn directly over your prescription glasses or with contacts.Totality means 100 per cent of the sun is covered.What can happen when you look directly at the sun? Youre essentially cooking your retina, the delicate, light-sensitive tissue deep inside the eyeball. NASA has a number of designs on its website, including one made with a cereal box.

Dont use eclipse glasses with filters that are crumpled, scratched or torn. You can look indirectly with a pinhole projector that you can make yourself. Certified eclipse glasses or hand-held viewers are a must for direct viewing. As for binoculars, telescopes and cameras, high-quality lock folding stoolsmall solar filters are essential and must be mounted at the front end. Also beware if the eclipse glasses are older than 2015, when international safety standards were adopted.. And unlike with the skin, you cant feel it. When totality is ending, then its time to put them back on.Seconds are enough for retinal sunburn.

Hours can pass before you realize the extent of the damage.Cape Canaveral: Solar glasses are a must for safe viewing of Mondays total solar eclipse, the first to span coast to US coast in 99 years.Sunglasses wont work. That will occur only along a narrow strip stretching from Oregon, through the Midwestern plains, down to South Carolina. Thats the only time its safe to view the eclipse without protection.

There should be absolutely no peeking without eclipse glasses or other certified filters except during the two minutes or so when the moon completely blots out the sun, called totality. The rest of the US gets a partial eclipse that extends into Canada and to the top of South America. Solar radiation can kill those cells.There are other options if you dont have eclipse glasses. The damage can be temporary or permanent.