Eye Care Tips for Teachers Teaching is a demanding profession which involves intense close work such as reading, writing, correcting papers, preparing lessons, or working in front of a computer screen for long periods of time. The pressures of teaching can take a toll...
What is the lens? The human lens is a clear structure that is located behind the iris & pupil and has an important function in vision. It works much like a camera lens. In a normal eye, it focuses rays of light into the retina to allow image formation. The retina...
