Ophthalmology

Prevalence of visual impairment in US increases

The prevalence of nonrefractive visual impairment (not due to need for glasses) in the U.S. has increased significantly in recent years, which may be partly related to a higher prevalence of diabetes, an associated risk factor, ...

Ophthalmology

Children's headaches rarely indicate a need for eyeglasses

A new study provides the first clear evidence that vision or eye problems are rarely the cause of recurring headaches in children, even if the headaches usually strike while the child is doing schoolwork or other visual tasks. ...

Psychology & Psychiatry

New research warns against Wi-Fi in cars

Plans to provide high-speed Internet access in vehicles, announced last month by Canadian telecommunications company Rogers Communications and American provider Sprint Corporation, could do with some sobering second-thought, ...

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