Pink Floyd's Dark Side of the Moon cover, voted the greatest classical rock album of all time, intended to portray the prism and dispersion of light into a rainbow as a certain metaphorical symbolism ...

The Nigeria Optometrist Association, NOA, have identified uncorrected refraction error as one of the most common eye challenges affecting children all over the globe ...

Refractive errors are common eye issues that can cause blurry or distorted vision. Treatment usually involves wearing glasses or contact lenses or getting procedures ...

If you studied advanced physics at high school, there's a good chance that you remember Snell's law, which states how a ray of light bends when it crosses a boundary between two media. According to ...

Possible causes that can result in blurry vision in one eye can include refractive errors, infections, migraine, and cataracts. Most causes of blurry vision are not serious. However, it is important ...

An autorefractor helps detect the lens power required to accurately focus light on your retina. It takes a few seconds and requires you to put your chin on the chin rest and look towards the picture ...