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Child eye injuries from liquid detergent capsules on the rise | Eye doctors are asking people to be cautious with the use of liquid capsules for fabric detergents following a wave of child eye injuries. Rashmi Mathew and Melanie Corbett
from The Western Eye Hospital, Imperial College Healthcare NHS Trust in London
say that last year chemical injuries linked with these capsules made up for 40
per cent of ocular chemical injuries in children under the age of five at their
hospital. They also report that Guy's and St Thomas' Poisons Unit received 192
enquires related to the capsules during 2007-08 and 225 calls during 2006-07,
a fifth of which related to ocular exposure. Of the 13 children they have examined
recently, corneal burns resolved with no complications in 12 cases. However, one
child received ocular irrigation (copious flushing of the eye with sterile water)
only on arrival in accident and emergency and thus sustained extensive corneal
burns. The capsule in most liquid detergent capsules is a water-soluble polyvinyl
alcohol membrane, points out co-author Katherine Kennedy, senior chemist at Guy's
Toxicology Unit in London . The liquid detergent is a mixture of three active
agents - an anionic detergent, a non-ionic detergent, and a cationic surfactant
- dissolved in water to give an alkaline solution, making the capsule more dangerous
than thought. The authors warn that alkali injuries are the most severe form of
chemical eye injury which can cause irreversible damage and lead to lifelong problems
such as constant discomfort, scarring and even amblyopia (lazy eye). The authors
conclude: "After recent discussions with Guy's Poisons Unit, some manufacturers
have made hazard labels more prominent. But greater consumer awareness is required
to reduce injury. Such concentrated cleaning products must be kept out of the
reach of children, and immediate irrigation is crucial to reduce the risk of clinically
significant injury." The report has appeared in this week's BMJ. |
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