The solar eclipse of August 12, 2026, was visible last night throughout mainland France, between approximately 19:20 p.m. and 20:45 p.m., with 89% to over 99% of the Sun obscured, depending on the region. Many people viewed it without certified eye protection, or with simple sunglasses that do not protect the retina. This page describes the signs that should prompt a consultation, the time frame for their appearance, and what is simply myth.
The most important message can be summed up in a few words. Visual discomfort that appears after observing the eclipse cannot be assessed at home or on a forum. It must be examined by an ophthalmologist.
Why can we damage our eyes without feeling pain?
The retina does not have pain receptors. The American Academy of Ophthalmology reminds us of this after every eclipse: retinal damage caused by looking at the sun, what doctors call solar retinopathy, is generally painless at the time of exposure. Therefore, not having experienced pain Tuesday evening says nothing about the condition of your eyes. What matters are the visual signs in the hours and days that follow.
Symptoms that should raise concern
The signs described by the AAO most often appear within four to six hours after exposure, sometimes beyond twelve hours. For Tuesday evening's eclipse, this places the window between the following night and the days that follow:
- a blurred vision that cannot be explained otherwise;
- a spot or blind spot in the center of vision, in one or both eyes;
- straight lines that appear wavy or distorted;
- colours perceived differently;
- an unusual sensitivity to light;
- Headaches associated with visual discomfort.
A simple test you can do at home: close one eye, then the other, and look at a text or a grid (tiles, graph paper). A missing, blurry, or distorted area in one eye is a sign to take seriously. This test does not replace an examination; it only helps to accurately describe what you observe when making an appointment.
Testing your vision at home: the Amsler grid
The Amsler grid is the classic tool for self-monitoring the macula, the central area of the retina that absorbs sunlight. The test doesn't diagnose anything, and a normal result doesn't rule out a lesion. Its value lies elsewhere: it helps you put a precise word to what you observe, eye by eye, before calling for help.
- Wear your reading glasses if you use them.
- Hold the screen about 30 to 40 cm from your eyes, in adequate lighting.
- Cover one eye with your hand, without pressing down.
- Fix your gaze on the central point, without moving your eyes, and observe the lines around it.
- Repeat with the other eye.
By focusing on the central point, for each eye:
This is an indicative self-monitoring test used for macular vision (AMDF, BrightFocus). It does not replace an examination: if you have any doubts or experience symptoms after the eclipse, driving should remain the same, and you should consult an ophthalmologist. No data is recorded or transmitted.
What to do if you have one or more of these signs
Contact an ophthalmologist as soon as possible, describing the situation: observation of the August 12th eclipse, with or without eye protection, and any symptoms experienced. A fundus examination and retinal imaging (OCT) can identify and monitor any potential damage. In case of a sudden decrease in vision or a major symptom, the ophthalmological emergency department should be consulted directly. The French Society of Ophthalmology provides patient recommendations.
While waiting for your appointment: do not instill any eye drops on your own, do not rub your eyes, and note the time the symptoms appeared and how they progress; this information will be used during the examination. Sunglasses may provide relief if the light is bothersome, but they do not treat anything.
Is there a treatment, or even surgery?
Let's be clear, because the panicked searches the day after an eclipse attract those selling solutions: there is currently no specific treatment for solar retinopathy . No approved medication, no laser, no surgery. Damage to the photoreceptors cannot be repaired in the operating room. If a website or video offers you a protocol, supplement, or "cure" for visual recovery after the eclipse, steer clear.
The consultation remains essential. It establishes the diagnosis, rules out other causes (some visual disturbances are unrelated to the eclipse and respond very well to treatment), and documents the lesion to organize follow-up care. According to the AAO, many people recover within three to six months. Others experience a permanent after-effect, most often a small central blind spot or a distortion, and only follow-up will determine your specific situation.
Your particular situation
- I watched the eclipse for a few seconds: is that serious?
- A black spot appeared in my vision: afterimage or scotoma?
- My child watched the eclipse: what should I check, how should I question them?
F.A.Q
Can symptoms appear several days later?
Most symptoms appear within the first twelve hours, but discomfort may develop or worsen in the following days. If you experience visual disturbances this week after observing the eclipse, the procedure remains the same: consult an ophthalmologist.
I looked with sunglasses: am I protected?
No. Only certified eclipse glasses (ISO 12312-2 standard) filter sufficiently for direct viewing. Sunglasses, even very dark or layered ones, allow enough radiation to pass through to damage the retina. If you have looked through them, monitor your eyes exactly as if you were not wearing anything.
Is a simple headache last night something to worry about?
An isolated and fleeting headache, without any visual symptoms, most often has other explanations: fatigue, glare, or the evening heat. What should prompt a visit to the ophthalmologist is a headache accompanied by a visual disturbance, such as blurred vision, spots, or distortions.
My child watched the eclipse: what should I do?
Children often have difficulty describing a spot or visual distortion. If you have any doubts about an observation made without eye protection, ask specific questions. Does he see a spot? Are the lines in the notebook straight? And what about in each eye? At the slightest doubt, seek an ophthalmological opinion without waiting for a spontaneous complaint.
Verified sources
- American Academy of Ophthalmology, Think you hurt your eyes watching the eclipse?
- French Society of Ophthalmology, Recommendations to Patients
- Paris Observatory, Circumstances of the eclipse of August 12, 2026
This general information page is not a substitute for a consultation. It contains no commercial links.
