🔬 Eclipse Safety Guide
⚠️ Never Look Directly at the Sun
Without proper ISO-certified eclipse glasses, looking at the sun — even during a partial eclipse — can cause permanent eye damage (solar retinopathy) within seconds.
What is ISO 12312-2?
ISO 12312-2:2015 is the international safety standard for filters used for direct observation of the sun. Eclipse glasses that meet this standard block 99.999% of sunlight, including harmful ultraviolet and infrared radiation.
Safe Viewing Checklist
- ✅ Use ONLY ISO 12312-2 certified eclipse glasses
- ✅ Inspect glasses for scratches, punctures, or damage before use
- ✅ Put glasses on BEFORE looking up at the sun
- ✅ Supervise children at all times during viewing
- ✅ Take breaks — don't stare continuously for extended periods
- ❌ Do NOT use regular sunglasses, even very dark ones
- ❌ Do NOT use homemade filters, smoked glass, or exposed film
- ❌ Do NOT look through a camera, telescope, or binoculars without proper solar filters
Health Canada Guidelines
Health Canada recommends using eclipse glasses that comply with ISO 12312-2:2015. All Eclipse Glasses Canada products are tested by accredited laboratories and meet or exceed these requirements.
When Can You View Without Glasses?
Only during totality — the brief period when the moon completely covers the sun. The moment any part of the sun reappears, put your eclipse glasses back on immediately.
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