A woman who visited an opticians for a routine eye tests was told she actually had a life-threatening condition.
Katie Holroyd thought she may have just needed new glasses and an updated prescription but the optometrist saw her optic nerve was swollen.
He immediately referred the 33-year-old woman to hospital where doctors found she had a blood clot in the brain, in addition to papilledema, the swelling of optic disks.
