The size of the drops is not solely determined by the size opening in the dropper. There are a variety of droppers available to consumers. Unless you purchase a dropper specifically made fo dispensing liquids into eyes, it may not be a "standard" eye dropper. There are pediatric dosing droppers (those tips are larger), droppers with curved tips (those openings are smaller). GuppyDazzle Just out of curiosity, how do you double check a 1 ml volume dispensed in drops?Actually, eyedroppers are very reliable measuring devices.
That's why I said to double check the dosage with an eyedropper, and also referred to a "regular eyedropper." Let me rephrase that for you, as a "standard eyedropper."
"A standard eyedropper dispenses 0.05 ml per drop, meaning there are 20 drops in 1 milliliter of medication. Let's do the math: a 5 ml bottle has 100 doses and a 10 ml bottle has 200 doses."
I have checked the drops per ml. It's spot on.
Of course, if you try to use a turkey baster instead, you will probably get a different dose. LOL!
"The volume of a drop is not well defined: it depends on the device and technique used to produce the drop, on the strength of the gravitational field, and on the viscosity, density, and the surface tension of the liquid."
Drop (unit) - Wikipedia