Types of Eye Drops

There are 3 types of eye drops:

  • Preserved Eye Drops;
  • Transiently Preserved Eye Drops; and
  • Non-Preserved Eye Drops.

Preserved eye drops are slightly toxic and not suitable for patients with severe dry eyes, a recent cornea transplant, or eye surgery.

Transiently preserved eye drops have preservatives that will degrade on contact with light or the patient's eye. This type are more cost effective and convenient than non-preserved type.

Non-preserved eye drops are meant for single dose administration and are the most expensive. You would have to use it after opening.

For preserved eye drops and transiently preserved eye drops, they usually have to be disposed off 3 month after first opening. Remember to store the eye drop in a dry place at room temperature.


There is no need to keep your eye drops in fridge, especially when the instruction on the packaging does not state that. If you have to bring the eye drops along, it is better to keep it in your handbag than in your pocket. When kept in your pocket, the eye drops will degrade due to your body temperature.

How to administer?

1. When applying the eye drops, pull down your lower eye lids gently.

Eye Drops

2. To avoid contamination, do not touch the tip of the eye drops bottle. Just apply 1 - 2 drops into your eyes.

3. Close your eyes after you have administered the eye drops. You may squeeze the bridge of your nose to avoid the eye drops from drippng out from your eye. Remain still for about 5 seconds. If you blink at this time, the eye drops will drip off, and the result will not be satisfactory.

Although the artificial eye drops could help to relieve dry eyes, use it only when you are feel discomfort in your eyes. When you need to use the eye drops, do follow the instructions on the packaging.

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