Refractive error is a common eye disorder in which the eyes can’t clearly focus on the images of objects looked at. There are numerous types of refractive error such as short-sighted, long-sighted or presbyopia which is when you need glasses to read as we grow older. These are common refractive errors.
Now, we all know the legendary and iconic normal safety glasses. We might have even worn them ourselves once or twice during activities such as science experiments in schools, welding and other activities that put our eyes at risk.
Transition lenses are photochromic lenses that quickly adjust the colour of lenses and adapt in changing light to protect from sun’s rays. Meaning