Medics were astonished to discover that 27 contact lenses had buried themselves behind the eye of a woman who was due to have cataract surgery.
The pensioner, 67, was completely unaware that the lenses were missing and told surgeons she thought the discomfort was simply down to her old age, reports the Daily Mail.
Medics initially found 17 contact lenses - but then discovered a further 10 on a second inspection.
"None of us has ever seen this before," Specialist trainee ophthalmologist, Rupal Morjaria, told Optometry Today.
'It was such a large mass. All the 17 contact lenses were stuck together.