How to Use Measuring Lines on Eyedroppers

If you are using an eyedropper for medication purposes it is important to have the exact amount specified in your instructions. Most medical eyedroppers have measurement lines along the side of the device, with each mark representing one 10th of a millimeter. With careful adjustments it is possible to determine the exact amount of fluid being used in the eyedropper.

Things You'll Need

• Eyedropper
• Liquid

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Instructions

• 1

  Insert the eyedropper into the liquid. Squeeze the top, then release. This is going to fill the majority of the dropper with the liquid.

• 2

  Kneel down so the eyedropper is aligned with your line of sight, yet directly above the liquid container.

• 3

  Squeeze out a small drop or two of the liquid and look to see which measurement line the liquid is even with.

• 4

  Continue to squeeze out a drop or two at a time until the liquid measurement is level with the appropriate amount you need in the eyedropper.