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When soft contact lenses first came on the scene, the ocular community went wild.

People no longer had to put up with the initial discomfort of hard lenses, and a more frequent replacement schedule surely meant better overall health for the eye, right?

In many cases this was so. The first soft lenses were made of a material called HEMA, a plastic-like polymer that made the lenses very soft and comfortable. The downside to this material was that it didn’t allow very much oxygen to the cornea (significantly less than the hard lenses), which bred a different line of health risks to the eye.

As contact lens companies tried to deal with these new issues, they started to create frequent-replacement lenses that made from SiHy, or silicone hydrogel. The oxygen transmission problem was solved, but an interesting new phenomenon occurred.

Because these were supposed to be the “healthiest” lenses ever created, many people started to over wear their lenses, which led to inflamed, red, itchy eyes; corneal ulcers; and hypoxia (lack of oxygen) from sleeping in lenses at night. A new solution was needed.

Thus was born the daily disposable contact lens, which is now the go-to lens recommendation of most eye care practitioners.

Daily disposables (dailies) are for one-time use, and therefore there is negligible risk of over wear, lack of oxygen, or any other negative effect that extended wear (2-week or monthly) contacts can potentially have. While up-front costs of dailies are higher than their counterparts, there are significant savings in terms of manufacturer rebates. In addition, buying contact lens solution is no longer necessary!

While a very small minority of patient prescriptions are not yet available in dailies, the majority are, and these contacts have worked wonders for patients who have failed in other contacts, especially those who have dry eyes.

Ask your eye care professional how dailies might be the right fit for you.

Article contributed by Dr. Jonathan Gerard

This blog provides general information and discussion about eye health and related subjects. The words and other content provided in this blog, and in any linked materials, are not intended and should not be construed as medical advice. If the reader or any other person has a medical concern, he or she should consult with an appropriately licensed physician. The content of this blog cannot be reproduced or duplicated without the express written consent of Eye IQ.

Health and government agencies nationwide are warning people about the spread of the COVID-19 coronavirus and are they offering important advice on how to minimize your risks of contracting the disease.

Besides social distancing and isolating yourself from people who are ill, health experts are telling people to wash their hands and to keep them away from their eyes, nose and mouth.

Their advice is to wash your hands often with soap and water for at least 20 seconds, or to use a hand sanitizer with at least 60% alcohol. They also strongly emphasize to keep your hands away from your face, since your eyes, nose and mouth are passageways for germs to enter your system.

That means don’t rub your eyes, scratch your nose or put your fingers next to your mouth. And you’re right, it will be hard to avoid those things. Think about how often you might itch your eyes or watch others to see how often they do it.

How do you practice good eye health in these trying times?

Here are some suggestions:

• Consciously think about what you’re doing with your hands.
• If your eyes are itchy or are watering, don’t touch them with your bare hands. Wash your hands thoroughly first and then use a tissue to either dab away the moisture or gently rub your eyelid or the corner of your eye. Dispose of the tissue as soon as you are done.
• If you wear contacts, always wash your hands before putting them in or taking them out.
• If you have glasses, wear them. While they won’t specifically protect against germs, they might make you think twice about touching your eyes. If you have both glasses and contacts, consider wearing your glasses to help remind you to keep your hands away from your eyes.
• Keep your lenses and frames clean and be sure to wash your hands before touching them.

Be safe out there, staying away from people who are ill and if you are ill. And keep your hands clean and don’t touch your face!

For more health tips and information about the coronavirus, visit the Centers for Disease Control’s website as cdc.gov.