Can Contact Lenses Get Stuck Behind Your Eye?

Contact lenses have revolutionized vision correction, providing comfort and convenience for millions worldwide. However, there are occasional concerns and myths about whether a contact lens can get dislodged or “stuck” behind the eye. The short answer is no, a contact lens cannot get stuck behind your eye. Here’s why:

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Understanding the Anatomy of the Eye

The structure of the eye prevents anything from moving behind it and getting lost. The conjunctiva, a clear membrane covering the white part of the eye (sclera) and the inner surface of the eyelids, acts as a barrier. The conjunctiva extends to form a protective layer over the front of the eye, ensuring that nothing can slip behind the eye.

Physical Size and Shape of Contact Lenses

Contact lenses are specifically designed to fit comfortably on the cornea and not behind the eye. They are typically larger in diameter than the cornea itself but are flexible enough to conform to its shape. Even if a contact lens were to move off the cornea, it would either be retained under the upper eyelid or fall out onto the surface of the eye.

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Eye’s Natural Defense Mechanisms

The eye has mechanisms to expel foreign objects or debris. Blinking, tears, and the movement of the eyelids are designed to keep the surface of the eye clear and healthy. If a contact lens were to dislodge, these natural processes would typically move it toward the front of the eye or out altogether.

What to Do If You Think a Contact Lens Is “Stuck”

If you feel discomfort or suspect that your contact lens is out of place, follow these steps:

  • Avoid rubbing: Rubbing your eyes can potentially dislodge the lens further.
  • Blink several times: This may help to reposition the lens or bring it forward.
  • Use rewetting drops: Lubricating drops can sometimes help the lens move back onto the cornea or make it easier to remove.
  • Consult an eye care professional: If you are unable to locate or remove the lens yourself, it’s essential to seek professional help promptly.

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Photo by Antoni Shkraba

Remember, proper hygiene, regular eye exams, and following your eye care professional’s advice are essential for maintaining healthy eyes while wearing contact lenses. While the idea of a contact lens getting stuck behind your eye can be alarming, rest assured that it is anatomically impossible due to the structure of the eye and the design of contact lenses.

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Ivan Yong

Dr. Ivan Yong is an optometrist with over a decade of experience in the optical industry. He earned his doctorate from the Southern California College of Optometry and has practiced in multiple settings, including private practice, community health, and ophthalmology. Dr. Yong aims to expand access to affordable eyewear and improve eye health worldwide.