Good vision depend on the health of your eyes.
When there is a problem with your vision it can be corrected with prescription glasses or contact lenses. Eyeglasses and frames come in many different shapes, prices. Standard, purpose built or latest fashion eyeglasses with corresponding lenses are available for purchase from any optician.
An eye consists of: cornea, pupil, iris, lens, retina, optic nerve and vitreous body of the eyeball. Vision is created by light rays reflecting from an object and passing through the cornea. Cornea refracts or bends and send the light through pupil. Pupil is surrounded by iris ( coloured part of the eye) which regulates the size of the pupil and by that controlling the amount of light passing through. From there the light goes through the lens which focus the light on the retina. Retina is converting the light in electrical impulses and sending them through the optic nerve to the brain.