Eye drops containing hyaluronic acid or salt thereof, and propylene glycol

The present invention relates to an ophthalmic solution which is an aqueous ophthalmic solution containing a concentration of 0.03 ~ 0.5% (w / v) of hyaluronic acid or a salt thereof and propylene glycol concentrations 0.1 ~ 1.0% (w / v) of, wherein the ophthalmic solution contains a concentration of 0.001 ~ 0.002% (w / v) of benzalkonium chloride as the sole preservative, and the ratio of osmotic pressure of the ophthalmic solution containing an ionic concentration of 0.9 to 1.1, etc. penetration enhancers.