Cosmetic contact lenses can pose a serious risk to eye health.
This is according to a recent article published by the BBC, supported by comments from Peter McDonnell, honorary treasurer at The Royal College of Ophthalmologists and a consultant ophthalmologist.
The BBC found that shops selling cosmetic or coloured contact lenses could be breaking health rules since the General Optical Council makes it clear that the lenses should only be sold under the supervision of an optometrist, dispensing optician or medical doctor.
Mr McDonnell explained that the danger comes from people purchasing cosmetic contact lenses from retail outlets without professional advice.
This may "increase the risk of potentially serious eye problems, such as infection of the eye".
However, when it comes to using contact lenses to correct eyesight issues, the ophthalmologist explained that lenses are "generally effective and safe, as long as the patient is being appropriately supervised by a qualified professional" and they follow advice on cleanliness and eye care.