According to CBS News, doctors discovered the missing lens embedded in a cyst in her left eyelid.
The contact lens was fully intact, preserved inside the tissue.
According to Dundee-based doctors Sirjhun Patel, Lai-Ling Tan and Helen Murgatroyd, who authored the report, the lens apparently migrated into the eyelid after the injury almost three decades earlier.
The woman, from Dundee, told her doctor her eyelid had been drooping but her vision was unaffected.
Doctors thought it was a cyst that had grown over a six-month period. After that injury, the girl stopped wearing hard lenses.
Unlike the soft contact lenses which are the most commonly used today, RGP lenses can initially be uncomfortable for the wearer and are more prone to dislodging from the eye during activities like sports.More news: Look Wallabies front row named to face All Blacks
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Warning signs of a trapped contact lens typically include sharp or scratchy pain, light sensitivity and redness, but the woman had no symptoms once the shuttlecock injury healed.
The woman couldn't immediately recall how the contact could have gotten there, but the woman's mother remembered the incident that had occurred 28 years earlier when her daughter was just 14.
Gas-permeable contact lenses are made of rigid, durable plastic that transmits oxygen, not to be confused with popular "soft" contacts or old-fashioned "hard" contacts.
Her ophthalmologist published her story on BMJ Case Reports. Wrongly believed to have fallen out, it was discovered the lens had been stuck in her eye the whole time without her realizing.
The doctors who treated the woman said they could "infer that the [contact] lens migrated into the patient's left upper eyelid at the time of trauma and [remained there] for the last 28 years", they wrote in the report. Doctors found one clump of 17 disposable contacts in a "blue mass" in her right eye; then they found another clump of 10.