OS Blog: Solar Eclipse Advice

If you missed it yesterday, Optometry Scotland Chair Eilidh Thomson joined BBC Radio Scotland’s Drivetime to talk about today’s solar eclipse and, importantly, how we can all enjoy it without putting our eyes at risk.

Today, a partial solar eclipse will be visible across Scotland, with more than 90% of the Sun obscured by the Moon in many areas. It will be the most significant solar eclipse visible from the UK since 1999 and a rare opportunity to experience such a dramatic event. The next total solar eclipse visible from the UK will not occur until 2090.

The solar eclipse is still an event that needs to be viewed safely. If you missed Eilidh’s interview, here are some of her key reminders:

  • Never look directly at the Sun.

Looking directly at the Sun can cause a solar burn to the retina at the back of the eye, including the macula, which is responsible for the detailed central vision we use for activities such as reading, recognising faces and seeing colour. Damage can happen very quickly and may result in blurred or patchy central vision.

  • Ordinary sunglasses are not safe for viewing the eclipse.

Even sunglasses that look very dark, do not provide the specialist protection needed to look directly at the Sun.

  • The safest way to watch is indirectly.

A pinhole projector is a simple way to enjoy the eclipse without looking directly at the Sun, or you can watch one of the livestreams being broadcast.

  • If you do use eclipse glasses, make sure they are genuine and purpose-designed.

Look for solar viewers which meet the standard, check for ISO 12312-2 marking which certifies safety, and be cautious of counterfeit or imitation products which may not provide adequate protection.

  • Do not look at the Sun through cameras, binoculars or telescopes without the appropriate specialist solar filters.

These devices can concentrate the Sun’s rays, or you can catch a glimpse when lining up your equipment meaning you can damage your vision inadvertently.

  • If you notice any changes to your vision after accidentally looking at the Sun, contact your optometrist.

They can assess your vision and advise you on any further care needed.

Eilidh’s main message is simple: prevention is the best way to protect your eyes. From Optometry Scotland and Eilidh, we encourage you to enjoy the eclipse, but make sure you do it safely.

The College of Optometrists has published further advice on viewing the eclipse safely, including guidance on making a simple pinhole projector.

Read the full eye safety advice from the College of Optometrists.