Eye drop refill planner

About this calculator

Enter when you opened your bottle and how long your last bottle lasted to get an estimated run-out date and a reorder date, taking the discard and expiration dates into account.

What you need

• The date you opened this bottle
• How many days your last bottle of the same drop lasted
• The discard-after-opening period and expiration date, if on the label

How it is calculated

Run-out date = opening date + days your last bottle lasted. The planning date is the earliest of the run-out, discard-after-opening and expiration dates. Reorder date = planning date − reminder days. Calendar days are used, with the opening date as day 0.

What the result can and cannot tell you

Bottle design, drop size and how drops go in all change how long a bottle lasts. Keep using your drops exactly as the label says; this planner does not change your dose. Check with your pharmacy if your drop or schedule has changed.

References

1. Glaucoma Research Foundation: Problems with prescription eye drop refills
2. Netra Eye Institute: Glaucoma

Related

• Eye drop schedule planner
• Glaucoma guide
• All eye calculators

For information only. These tools explain numbers and do not replace an eye examination or your eye doctor’s advice. Values you enter stay in your browser.