Following a presentation at the annual meeting of the American Academy of Ophthalmology a number of media reports have reported a possible link between use of combined oral contraception (COC) and glaucoma. There is limited data investigating combined hormonal contraceptives on glaucoma. One cohort study suggested that 5 or more years of COC use was associated with a 25% increase in the risk of glaucoma. Two UK cohort studies did not find consistent evidence of an increased risk.
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