Observing the solar eclipse on August 12 requires increased caution to protect vision. Visible sunlight, even when dimmed during the event, is intense enough to cause solar retinopathy, a photochemical burn on the retina that can lead to spots, distorted vision, or permanent vision loss.
Regular sunglasses do not provide adequate protection. It is essential to use specialized eclipse glasses with a filter certified to the ISO 12312-2 standard. These glasses must be worn during all phases when the sun is partially visible and should never be replaced by improvised filters like X-rays or smoked glass. Viewing through binoculars or telescopes is only safe with appropriate solar filters attached to the front.
Symptoms of solar retinopathy, such as blurred vision or dark spots, may appear hours after exposure, even without immediate pain, as the retina lacks pain receptors. If visual changes occur after observing the eclipse, it is crucial to seek an ophthalmologist urgently. To verify the glasses' certification, look for the full reference "EN ISO 12312-2:2015" and the CE mark, and purchase from reputable sources.
