A member asked:

What is the difference between isotonic and hypertonic eye washes? i need to rinse my eyes several times a day due to allergies?

A doctor has provided 1 answer
Dr. Jan Lei Iwata answered

Specializes in Ophthalmology

Only normal saline!: for allergies, meaning isotonic.. Hypertonic saline 5% is better for corneal edema or swelling eye conditions that need to reduce swelling not for allergies. We see best when the cornea is clear and not swollen.

Answered 12/17/2015

2.6k views

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