Partial Solar Eclipse should not be a sight for sore eyes

Stargazers across parts of Australia’s eastern coast are getting set for a partial solar eclipse that will be visible on September 21, 2025. While excitement amongst astronomy enthusiasts is building ahead of this natural wonder, Standards Australia is counting down with a reminder of the importance of using certified equipment when viewing a solar eclipse.

Kareen Riley-Takos, Chief of Engagement, Standards and International Relations at Standards Australia said watching a solar eclipse, of any kind, without the correct eye protection can cause serious vision damage.

“We recommend watching the partial eclipse safely by using ISO-certified solar eclipse sunglasses which are specifically designed to block any harmful ultraviolet and infrared rays," Riley-Takos said.

“Like all consumer goods, we recommend only using products that meet ISO, IEC or Australian Standards. Purchasing from an unreputable supplier or a low budget option may compromise your health”.

A total solar eclipse can be seen from Earth every 375 years on average. Standards Australia Eye and Face Protection Committee Chair Stephen Dain said the most recent total eclipse Sydney saw was in 1857. Experts forecast the next total eclipse in Sydney on July 22, 2028 will be the last one the city sees for 800 years.

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Use ISO-Certified Solar Eclipse Sunglasses

To safely watch the partial eclipse directly, it is essential to wear sunglasses that meet AS ISO 12312.2:2020 Eye and face protection – Sunglasses and related eyewear – Part 2: Filters for direct observation of the sun.

Standards around appropriate eyewear for an eclipse are set at an international level, adopted in Australia and are based on expert advice.

Failing to use certified sunglasses could result in temporary or permanent vision loss.

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Alternative Safe Viewing Methods

Certified sunglasses and filters that meet international and Australian standards are the safest way to enjoy the solar eclipse. If you don’t have any certified equipment, the Astronomical Society of Australia outlines how to enjoy the eclipse with pinhole and optical projectors that can safely project the Sun’s image onto a surface.