Eclipses are exciting events, but looking at the sun, even when it is partly covered, can burn the retina. This is called solar retinopathy, and the damage can be permanent.
Safe ways to watch
- Certified eclipse glasses or solar viewers that meet the ISO 12312-2 standard, used undamaged and as directed
- A pinhole projector, which lets you view the sun’s image projected onto paper, with your back to the sun
- Public viewing events at planetariums with properly filtered telescopes
Not safe
- Ordinary sunglasses, even very dark ones
- X-ray film, smoked glass or coloured cellophane
- Looking through cameras, binoculars or telescopes without proper solar filters, which concentrate sunlight and cause damage instantly
Symptoms of eye damage
Blurred vision, a blind spot, distorted lines or changes in colour vision in the hours or days after watching. There is usually no pain. See an eye doctor promptly if you notice these.
Children
Supervise children closely, as they may look up at the sun without realising the risk.
Frequently asked questions
Is it safe to look at the sun during totality?
Only during the brief period of totality in a total eclipse is it safe without filters. Partial phases are never safe.
Can I use my phone to watch?
Viewing the phone screen is fine, but do not look at the sun directly while aiming the phone.
Sources
This article is for general information and does not replace an examination by an eye doctor. If you have symptoms, please book a consultation.