by Joel Harrison
28. June 2011 14:01

A global study of people with vision correction has been conducted to improve the understanding of their problems, revealing that halos (rings around sources of light) and glare (difficulty seeing when there is bright light) occur very often and are quite bothersome.
The Needs, Symptoms, Incidence, Global Eye Health Trends (NSIGHT) study included 3,800 patients wearing glasses or contact lenses from seven countries (including the UK and the USA).
Most patients who reported these symptoms said they usually appeared in the evening or late at night and were connected with bright lights, headlights, driving at night. The problem of halos was experienced by approximately 56% of contact lens users, while glare concerned 50% of them more than three times a week. Over 80% of contact lens wearers found these symptoms bothersome.
According to Nick Dash, BSc, pupils become larger in low light, which makes halos and glare more prevalent. This affects such common activities as night-time driving. It is therefore important, Dash adds, for eye care practitioners to talk to patients about such situations to find solutions.
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Tags: encevision correction, halos, glare, The Needs, Symptoms, Incidence, Global Eye Health Trends, patients, bright lights, headlights, Nick Dash, BSc
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