Effective Advertising and Info Management

Understand how the eye operates

In order to see clearly, light rays have to be entirely centered on the retinal layer at the back of the eye. The beams of light that emanate from an image go through the transparent cornea (covering of the eye) and then are twisted as the travel through the eye’s innermost lens, that works the fine tuning of the direction.

The visible image is imprinted by the light sensitive retina commuting the light energy into electical nerve impulses, which then communicate along nerves to the region at the back of the brain that processes vision. This occipital part of the cerebral cortex tells us what we are seeing

Short-sightedness (myopia)

With near sighted or myopic people, the eye socket is too long, compared with the centering strength of the cornea and lens unit. Hence the rays of light that come from the distant object converge in front of the retina as the corneal/lens focussing unit is too powerful.

This means that achieving a clear image of an object in the distance becomes increasingly challenging. Focussing on objects near by is OK. Hence children might not learn as well as they can not read what is written on the white board very easily.

In general, children and teenagers are the most commonly affected group of patients. You may find that the whole family have to wear glasses as there is a genetic tendency. However, these parents are usually well aware of the tell tale signs and Thus tend to bring their children to the care of opticians relatively quickly.

Spectacles are necessary to set right the focusing by creating another element to the cornea/lens unit, which distorts the visual image to allow it to focus on the retina more readily. It can be quite expensive to buy spectacles all the time. However, it is possible to buy your online spectacles now. Myopia can also be handled by wearing contact lenses or even undergoing laser surgery to correct the anomalous visual unit

Comments are closed.