{"id":1722,"date":"2023-05-16T15:29:50","date_gmt":"2023-05-16T19:29:50","guid":{"rendered":"https:\/\/www.warbyparker.com\/learn\/?p=1722"},"modified":"2026-04-02T03:12:35","modified_gmt":"2026-04-02T07:12:35","slug":"what-is-saline-solution","status":"publish","type":"post","link":"https:\/\/www.stage.warby.io\/learn\/what-is-saline-solution","title":{"rendered":"What Is Saline Solution (Is It the Same as Contact Solution)?"},"content":{"rendered":"\n

Saline solution, also called normal saline solution, is a pH-balanced mixture of water and salt (sodium chloride, if you want to sound fancy). And no, it\u2019s not the same as contact solution. But more on that in a bit.<\/p>\n\n\n\n

Saline solution contains 0.9% salt. And fun fact: That closely resembles the concentration of salt found in our blood and tears. Saline is often used in the medical field to clean wounds, clear out sinuses, and treat dehydration. However, it can also play an important part in caring for your eyes and contact lenses<\/a>. <\/p>\n\n\n\n

Although saline solution has a wide variety of uses, this article will focus on how it\u2019s used for your eyes and contacts. Let\u2019s dive in. <\/p>\n\n\n\n

Saline Solution vs. Contact Solution<\/h2>\n\n\n\n\n\n

Saline solution and contact solution<\/a> aren\u2019t the same and shouldn\u2019t be used in the same way for contact lens care<\/a>. Saline solution is strictly a combination of salt and water, whereas contact solution contains other ingredients for cleaning and sterilization purposes. Although contact solution often incorporates saline into its formula, it also includes disinfectants, surfactants, wetting solutions, and preservatives. <\/p>\n\n\n\n

What Does Contact Solution Do?<\/h3>\n\n\n\n

Contact solution is used to clean and disinfect your contact lenses<\/a>. Its main duties are to kill germs and bacteria and to clear away any residue on your contacts. If you\u2019re using a multipurpose contact solution, you can also use it to rinse your contacts and store them when they\u2019re not in your eyes. <\/p>\n\n\n\n

What Does Saline Solution Do for Contacts?<\/h3>\n\n\n\n

Using saline can be an important step in caring for your contact lenses, but it definitely shouldn\u2019t be the only<\/em> step or product you use. Think of saline solution and contact solution as the power couple of contact lens care. Saline solution can be a great addition to your contact lens care routine alongside a multipurpose or disinfecting contact solution. <\/p>\n\n\n\n

Your contact solution handles the first step of disinfecting your lenses. But saline can be used after your contact solution to rinse off your contacts before putting them in your eyes. Rinsing helps remove any excess debris or particles from the lenses, making them safe for your eyes. <\/p>\n\n\n\n

Multipurpose contact solutions can be used for both cleaning and rinsing, but your eye doctor might recommend saline solution for rinsing, depending on the products you\u2019re using.<\/p>\n\n\n\n

The key thing to remember when it comes to saline solution for contacts is that saline solution doesn\u2019t disinfect your lenses. Because of this, you shouldn\u2019t use saline solution on its own (without a disinfecting contact solution) or for storing your lenses. <\/p>\n\n\n\n<\/div>\n\n

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Can You Put Saline Solution in Your Eyes?<\/h3>\n\n\n\n

Yes, saline solution is safe to put in your eyes. In fact, it can serve many useful purposes in caring for your eyes.<\/p>\n\n\n\n

So, what does saline do for eyes (aside from being a rinse for contacts)? Saline is also an effective solution for:<\/p>\n\n\n\n