Refractive error means that the shape of your eye does not bend light correctly, resulting in a blurred image. The main types of refractive errors are myopia (near sightedness), hyperopia (far sightedness), presbyopia (loss of near vision with age) and astigmatism.
Retina is located at the back of your eye and contains light sensitive cells that send electrical signals to the brain along the optic nerve. These signals are used by the brain to interpret what you are seeing.
A condition where the lens of the eye becomes progressively cloudy, resulting in a blurry vision. It is one of the leading causes of preventable blindness in Kenya and the most common cause of vision loss in people over 4o