Does sleeping in my contact lenses damage my eyes? Contact lenses block oxygen from getting to your cornea (the front surface of your eyes). With your eyelids closed, you further reduce the oxygen available, basically ‘suffocating’ your eyes. This causes your eyes to develop scars and small sores called infiltrates. Also, bacteria can accumulate under the contact lens and start to eat through the tissue of your eye – this is called an ulcer. All of these can result in permanent vision loss. NEVER clean your contacts with water! Water contains small organisms that like to consume the tissues in your eye - these are very hard to treat. You should always clean, dispose, and wear your contact lenses as directed by your eye doctor. Why is my contact lens prescription different from my glasses prescription? Contact lenses rest directly on your eye, while glasses sit 12-14mm away from your eye. The difference in distances changes the prescription demand of your eye. Contacts are also prescribed by curve and diameter. These measurements describe the shape and size of your eye. If a contact lens does not match your eye size, it can damage your eyes and may cause vision loss. Contacts are also made in different materials that are prescribed based on the oxygen demands of your eyes. Contact lens brands are not interchangeable; they all fit and function differently. |
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