Abstract

A cataract is a clouding of the lens which can lead to gradual reduction in vision and disturb every day activities such as driving and reading (1). The main symptoms include clouding or blurring of vision, glare, reduced night vision that is noticed when driving, haloes around lights and fading of colours. There are various risk factors of which increasing age is the most significant one. Others include lifestyle factors such as diabetes, smoking and hypertension, previous ocular trauma or surgery and iatrogenic causes such as use of long-term corticosteroids (which can typically lead to a posterior subcapsular cataract).

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