On August 12, 2026, a highly anticipated solar eclipse will take place in Spain. It will be an extraordinary astronomical event and, for many people, a unique chance to look up at the sky. But it is also a moment to remember something essential: watching an eclipse without proper protection can seriously damage your eyesight.
Tips for viewing the eclipse safely for your eyes
Although eclipses are often discussed with excitement and curiosity, there is one aspect that should never be overlooked: eye health. It is not enough to simply “be careful” or squint for a few seconds. When we look directly at the sun, even during an eclipse, our eyes are still exposed to intense radiation that can cause damage to the retina.
A solar eclipse could be dangerous for your eyesight, ambient light changes and the sun may seem less uncomfortable to look at. That is precisely where the risk lies: this false sense of safety can lead someone to stare for longer than they should. However, except during the brief moment of totality—and only within the exact path where the sun is completely covered—looking directly at the sun is not safe. In Madrid, for example, the eclipse on August 12, 2026 will be seen as partial, not total. That means it will never be safe to observe it with the naked eye.
What kind of glasses can you use to watch a solar eclipse?
Not all glasses offer the same level of protection. In fact, regular sunglasses are not suitable for looking at an eclipse, no matter how dark they may seem. To observe it directly, you need special eclipse glasses or solar viewers that comply with ISO 12312-2, the international standard for direct solar viewing.
If you are planning to watch the eclipse, always check that the product: clearly states that it complies with ISO 12312-2 is in good condition, with no scratches, punctures, or damage comes from a reliable manufacturer or distributor.
What you should never do during a solar eclipse.
There are several very common mistakes that should be avoided. None of the following methods provide safe protection:
- regular sunglasses.
- Smoked glass.
- X-ray film.
- Photographic negatives.
- Homemade filters or watching the eclipse through a phone, camera, binoculars, or telescope while using only eclipse glasses.
This last point is especially important: you should never look at the sun through optical instruments without solar filters specifically designed for them, because they can concentrate light and increase the risk of eye injury.
How to watch the eclipse safely
If you are going to observe the eclipse in August, these are the basic recommendations:
- Use certified protection. Make sure you wear eclipse glasses certified under ISO 12312-2.
- Put them on before looking at the sky. Put the glasses on first, then look at the sun. When you are done, look away first and only then remove them.
- Do not improvise with optical accessories. If you are going to use a camera, telescope, or binoculars, they must have the correct solar filters mounted in the proper place. Eclipse glasses alone are not enough in those cases.
- Supervise children.If children are going to watch it, it is important that they do so with adult supervision and with the correct protection. This is a common-sense recommendation based on the same principle of eye safety.
What if I am in the path of totality?
The eclipse on August 12, 2026 will indeed be total in some parts of Spain, along a strip that crosses the country from west to east. But even then, it is only safe to remove eye protection during the very brief moment of totality, and only if you are actually within that path. As soon as the first bright point of sunlight reappears, you must protect your eyes again immediately.
Warning signs after looking at an eclipse
Sometimes retinal damage does not cause immediate pain, so a person may think nothing has happened. If, after observing the eclipse, you notice blurred vision, a dark or central spot, changes in color perception, or difficulty focusing, you should consult an eye care professional as soon as possible. This recommendation follows the general warning about eye damage caused by viewing the sun without proper protection.
Seeing well also means being mindful of how we look
Phenomena such as an eclipse remind us of something very simple: we often take our vision for granted until discomfort appears or we notice that something is not quite right. Taking care of our eyes should not be limited to exceptional moments, but should be part of an ongoing routine of visual care.
At L’Atelier, we understand optics from that perspective: not only as an aesthetic matter, but as a way of seeing with more judgment, more awareness, and more care.
If it has been a while since your last eye exam, this may be a good time to schedule one. Book an appointment at L’Atelier and give your eyes the care they deserve.
