Eye Drops Origins
The concept of eye drops dates back to ancient Egypt, where remedies for eye conditions were recorded on papyrus. They used honey, milk, and even crushed precious stones.
Types of Eye Drops
Eye drops come in various forms: artificial tears for dryness, antihistamines for allergies, antibiotics for infection, and drops containing steroids to reduce inflammation.
Preservative vs. Preservative-Free
Preservative eye drops have a longer shelf life but can irritate sensitive eyes. Preservative-free drops are safer for frequent use, especially post-surgery or for chronic dry eyes.
Correct Application Technique
Proper technique is crucial. Wash hands, tilt head back, pull lower lid down, apply one drop, close eye, and press gently on tear duct for 30 seconds to prevent systemic absorption.
Avoiding Contamination
To prevent infection, don't touch the dropper tip with your hands or eyes. Always replace the cap after use and discard the bottle after the recommended period, usually one month.
Unique Delivery Systems
Beyond traditional droppers, there are now punctal plugs that release medication slowly over time, and contact lenses designed to dispense medicine gradually as they are worn.
Impact on Tear Production
Some eye drops can decrease natural tear production with prolonged use. Drops containing vasoconstrictors to reduce redness can lead to rebound hyperemia, causing more redness.
Where did eye drops originate?
Ancient Greece, using olive oil
Ancient Egypt, remedies on papyrus
Medieval Europe, herb infusions
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