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> I imagine this product would be used in just one eye at a time

The dosage instructions say to use it in both eyes

https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/21...

Ah that's interesting then. My guess would be that it doesn't close the iris as much then. However the linked does show 16% reporting dim vision, so there's some further work needed there (pupil size varies across the population, and there's the usual variation in dose efficacy.)

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