Stop use and consult a doctor if you develop eye pain, worsening redness/irritation, sensitivity to light, changes in vision, or no improvement. Do not use if the solution changes color/becomes cloudy or if seal is broken. If you wear contact lenses, remove them before instillation and reinsert after 15 minutes (or as per label). Discard within the in-use period after opening as per pack instructions to avoid contamination.