How To Prepare Sterile Eyedrops

Eyedrops provide relief for sore, dry, irritated, and tired eyes. Store-bought eyedrops have tetrahydrozoline hydrochloride and are proven safe and effective to use. But did you know that you could make your own sterile eyedrops? A homemade sterile eyedrop works just as efficiently in providing eye relief. Also safe to use, sterile eyedrops are easy to make and don't require you to spend a single cent. Here’s how you can prepare your own sterile eyedrops.

  1. Disinfect your hands. Make sure to thoroughly wash your hands before you make the sterile eyedrops and touch the ingredients and materials you will use. Wash your hands with soap and water, making sure that the palms, fingers, and spaces between the fingers are thoroughly cleansed. Use a lint-free, clean towel to dry your hands.
  2. Gather all your ingredients and tools. What you need is an ounce of filtered or purified water, ¼ teaspoon of iodized salt, and one pinch of baking soda. Remember not to use tap water since this contains chlorine that may cause infection if it comes into contact with the eyes. Also, prepare a pan, bottle for storage, and dropper. Make sure that all of them are sterile. You can sterilize them by soaking them in boiled water. Leave them for at least 10 minutes. Don’t rinse as tap water may contaminate them. Set them aside to air dry.
  3. Boil the filtered water. Pour the filtered water into the pan. Then, add in iodized salt and baking soda. Turn the stove into medium heat. Wait until the water boils. Boiling the water will kill the germs that may be present in the solution, so don’t turn the stove off until the water reaches a boiling point.
  4. Allow the boiled solution to cool. When the water boils, remove the pan from the stove. Keep the pan covered to prevent air dust particles to settle into the solution. Set it aside and allow it to cool.
  5. Transfer the eyedrop solution into the sterile bottle. When already cool, pour the eyedrop solution into the sterile bottle. Make sure not to touch the solution with your hands to avoid contaminating it. You can leave the bottled solution in the refrigerator so that it leaves a refreshing sensation when applied.
  6. Apply the eyedrop solution with a dropper or a cotton ball. You can use either a dropper or a cotton ball to pour a few drops of eyedrop solution into your eyes. But make sure that your hands are thoroughly washed before the application to avoid infecting your eyes.

Two things to keep in mind: One, don’t apply hot solution into your eyes. Not only is it painful, it can also damage your eyes. And two, consider the solution expired after at least a week. Although refrigerating the eyedrop solution will keep it fresh, you are not guaranteed that it will work as efficiently as it did after that period. Also, it is much safer to use newly prepared eyedrop solution.


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