A cataract is when the crystalline lens in the eye gradually becomes cloudy and more opaque. The lens is normally clear and sits behind the iris. The lens helps focus light to produce a sharp image on to the retina at the back of the eye and changes shape to allow you to refocus. A cataract acts a bit like a frosted glass coating that scatters light, causing blurring and lack of clarity.
Cataracts are painless and usually cause a gradual worsening of sight.
Vision may become misty or hazy so that you cannot see details at a distance.
Vision may be difficult in low light and bright light may cause glare or ‘starburst’ effects.
Double vision may occur for either close or distance objects.
Colours may start to appear faded or washed out.
In theory anybody who lives long enough will eventually develop cataracts although age onset is not the only cause, for example excessive UV exposure can be one of the causes.
Please note: The descriptions of this condition is for information, knowledge, interest and awareness and should not be used to self-diagnose. Always consult us if you have any concerns.