https://www.bbc.co.uk/news/health-46793916
The woman, from Glasgow, had to be treated at A&E after she was given Vitaros cream instead of the eye lubricant VitA-POS.
The woman was given a handwritten prescription for VitA-POS, a liquid paraffin lubrication, for treatment of severe dry eyes and corneal erosions. But she was issued with Vitaros instead.
After using it she suffered eye pain, blurred vision, redness and swollen eyelids.
The mild chemical injury to her eye was treated in hospital with topical antibiotics, steroids and lubricants, which cleared it up in a few days.
it is unusual in this case that no individual, including the patient, general practitioner or dispensing pharmacist, questioned erectile dysfunction cream being prescribed to a female patient, with ocular application instructions.
writes Dr Magdalena Edington, from Glasgow's Tennent Institute of Ophthalmology in a report for the December edition of BMJ Case Reports.
The report calls for doctors to use block capitals in handwritten prescriptions to avoid errors.