Key Points
Swiss opticians sold out of eclipse glasses ahead of August 12 event.
Peak eclipse coverage reaches 91% of sun between 20:15 and 20:20 CET.
Protective glasses cost 5-6 francs and are mandatory to prevent retina damage.
Remaining stock available only at select retailers with immediate purchase required.
Solar eclipse glasses have vanished from Swiss optician shelves just five days before the August 12 event. Retailers from Basel to Zurich report inventory exhausted or nearly gone, with demand far exceeding supply. The partial eclipse will peak at 20:17 CET, when the moon covers up to 91% of the sun across Switzerland. Direct viewing without certified protection can permanently damage the retina, according to the Swiss Federal Office of Public Health.
Why eclipse glasses sold out so fast
Sonnenfinsternis-Brillen cost only 5 to 6 Swiss francs but triggered an unexpected rush. Ramstein Optik in Basel ordered 100 units and sold all of them within days. Urech Optik in Aarau reports numerous customer requests but limited stock, with optician colleagues and suppliers also sold out. Gottheil Optik in Küsnacht ZH sold roughly 50 glasses in one week alone, with demand accelerating as the eclipse date approaches.
Where glasses are still available
Stock remains scarce but not entirely gone. Gottheil Optik in Küsnacht ZH still has units available for customers who arrive quickly. Brillerei in Bern chose not to stock eclipse glasses, underestimating demand, but refers customers to Foto Zumstein where supplies are also running low. Most Swiss retailers now face a race against time to restock before Wednesday evening.
Why eye protection is mandatory
The Swiss Federal Office of Public Health warns that direct sunlight exposure, even during a partial eclipse, can severely damage the retina and cause permanent vision loss. Certified eclipse glasses are specifically designed for safe solar viewing. The August 12 eclipse will begin around 19:00 CET and end near 21:00 CET, with peak coverage between 20:15 and 20:20 CET. Visibility depends on clear skies and elevated viewing positions.
What happens if you cannot find glasses
Retailers suggest customers contact local opticians immediately, as remaining stock will likely sell out today or tomorrow. Some shops report continuous foot traffic from parents seeking protection for children. Alternative viewing methods exist, such as pinhole projectors or welding glass, but certified eclipse glasses remain the safest and simplest option. Customers without access to glasses should avoid looking at the sun directly, regardless of the eclipse stage.
Final Thoughts
Swiss opticians were unprepared for the surge in eclipse glass demand, leaving most retailers sold out five days before the event. Customers seeking protection should contact local shops immediately, as certified eyewear is critical to prevent permanent retina damage during the August 12 partial eclipse.
FAQs
The eclipse peaks between 20:15 and 20:20 CET, when the moon will cover up to 91% of the sun across Switzerland.
Sonnenfinsternis-Brillen cost 5 to 6 Swiss francs per pair at optician shops.
No. Direct sunlight exposure, even during a partial eclipse, can permanently damage the retina according to Swiss health authorities.
Most retailers are sold out or nearly sold out. Gottheil Optik in Küsnacht ZH still has limited stock for customers who arrive quickly.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
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