Topical steroids should never be given for an undiagnosed red eye.
Patients should be monitored at frequent intervals during treatment with dexamethasone eye drops. Prolonged use of corticosteroid treatment may result in ocular hypertension/glaucoma (especially for patients with previous IOP induced by steroids or with pre-existing high IOP or Glaucoma) and also cataract formation, especially in children and elderly population.
The use of corticosteroids may also result in opportunistic ocular infections (bacterial, viral or fungal) due to the suppression of host response or to the delay of their healing. In addition, topical ocular corticosteroids may promote, aggravate or mask signs and symptoms of opportunistic eye infections.
Patients with an eye infection should only receive local steroid treatment when the infection has been controlled by an effective anti-infectious treatment. Such patients should be carefully and regularly monitored by an ophthalmologist.
In some particular inflammatory conditions such as episcleritis, NSAIDS are the first line treatment, Dexamethasone should be used only if NSAIDS are contra-indicated.
Patients with a corneal ulcer should generally not receive topical dexamethasone except when inflammation is the main cause of healing delay and when the appropriate aetiological treatment has already been prescribed. Such patients should be carefully and regularly monitored by an ophthalmologist.
Thinning of the cornea and sclera may increase the risk of perforations with the use of topical corticosteroids.
Corneal calcification requiring corneal graft surgery for visual rehabilitation has been reported for patients treated with ophthalmic preparations containing phosphates such as dexamethasone. At the first sign of corneal calcification the drug should be withdrawn and the patient should be switched to a phosphate-free preparation. In children, long-term continuous corticosteroid therapy should be avoided due to possible adrenal suppression.
Posterior subcapsular cataract might occur at cumulative doses of dexamethasone.
Diabetics are also more prone to develop subcapsular cataracts following topical steroid administration.
The use of topical steroids in allergic conjunctivitis is only recommended for severe forms of allergic conjunctivitis not responding to standard therapy and only for a short period.
Wearing of contact lenses during treatment with corticosteroid eye drops should be avoided.
Patients with a history of contact hypersensitivity to silver should not use this product as dispensed drops may contain traces of silver.
Cushing's syndrome and/or adrenal suppression associated with systemic absorption of ocular dexamethasone may occur after intensive or long-term continuous therapy in predisposed patients, including children and patients treated with CYP3A4 inhibitors (including ritonavir and cobicistat). In these cases, treatment should be progressively discontinued.
Visual disturbance
Visual disturbance may be reported with systemic and topical corticosteroid use. If a patient presents with symptoms such as blurred vision or other visual disturbances, the patient should be considered for referral to an ophthalmologist for evaluation of possible causes which may include cataract, glaucoma or rare diseases such as central serous chorioretinopathy (CSCR) which have been reported after use of systemic and topical corticosteroids.
Wearing of contact lenses during treatment with corticosteroid eye drops should be avoided.