A recent study conducted by Moorfields Eye Hospital in London and University College London has unearthed a concerning increase in the prevalence of Acanthamoeba keratitis since 2011.

This preventable infection targets the cornea, the front surface of the eye, causing pain and inflammation, with contact lens wearers being the most vulnerable. In severe cases, patients may suffer vision impairment, with some experiencing blindness due to the disease.

Rising Rates of Infection

Formerly a rare condition, Acanthamoeba keratitis saw an escalation in reported cases at the hospital, with only eight to ten cases annually between 2000 and 2003.

This number surged to 35 to 65 cases each year from 2011 to 2016, indicating a significant rise. Earlier estimations suggested 2.5 cases per 100,000 contact lens wearers in southeast England in 2002, but current rates now appear two to three times higher than the past statistics.

Identifying Risk Factors

Lead author of the study, Professor John Dart, emphasized the necessity for contact lens users to comprehend the potential risks associated with this infection. Acanthamoeba, a microorganism forming cysts, is prevalent in UK water supplies, posing a particular threat to those using reusable contact lenses.

Individuals affected by the infection often had inadequate lens solution, contaminated their lenses with water, or displayed poor hygiene practices. Taking a shower, swimming, or using hot tubs while wearing contacts have also been identified as significant risk factors.

Preventive Measures and Recommendations

Prof Dart emphasized the importance of meticulous handwashing and proper drying before handling contact lenses for individuals using reusable lenses. Additionally, it is advised to avoid wearing lenses while engaged in activities like swimming or bathing.

Examining the data to determine risk factors is ongoing, with a contemplation on whether daily disposable lenses present a safer alternative, thereby eliminating the need for lens solutions or cases.

Public Advocacy and Urgent Actions

Irenie Ekkeshis, a member of the Acanthamoeba Keratitis Patient Support Group UK, stressed the necessity for governmental bodies and optical professionals to take the findings seriously.

Immediate action on implementing preventive measures is urged, considering contact lenses as medical devices that should come with safety warnings concerning their appropriate usage. It is vital to prioritize patient safety by actively addressing these emerging concerns!

Acanthamoeba Keratitis ¦ Treatment and Symptoms

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