Get to Know the benefits of Hard Contact Lenses Before You Use One

Wearing vision-correcting lenses is not new to us and from time immemorial people were seen using different kinds of glasses for improving their vision.

One theory even suggests that even 450 years back Leonardo da Vinci came up with the idea of using external devices such as glasses for correcting any improper vision.

However, the idea did not take wings as there were no facilities at that time for manufacturing glasses and the descriptions remained only on paper.

Later, in the year 1887, a Zurich based scientist by name A. E. Fick made the first ever contact lens and soon the concept was shunned due to the fact that the glass made lenses were found to be uncomfortable.

Then, only in the early 1940s, the ancestor of our today’s plastic contact lenses were invented and after that there was no need for looking back.

The first ever non-glass contact lens was made from a material called PMMA, and the same material is still being used today for manufacturing contact lenses due to the reason that the material was well tolerated by human eyes.

The same PMMA material is also used in making the intraocular implantable lenses and for other orthopedic purposes.

Until the year 1972, there were no soft contact lenses available in the country and in the American market only the Bausch and Lomb Company first introduced the soft contact lenses.

People still vote for the original soft contact lenses made in those days, as they were found to be more comfortable when compared with today’s hard lenses.

But the limited availability of sizes made the soft counterparts making a hasty retreat from market and the new present day hard contact lenses made its way into the market.

The big difference between a soft and a hard contact lens is that the soft lens will be able to breathe and let the air and oxygen pass through them thereby providing a healthier environment.

So a person wearing a soft contact lens will have a healthy cornea due to the well-circulated oxygen within the eye.Your vision will deteriorate due to lack of oxygen and the situation may lead corneal swelling and damage to epithelial cells.

In the last 30 years or so,the concept of wearing contact lenses has undergone a major change and today we have contact lenses to cater to the need for any kind of vision correction and we also have disposable contact lenses with various designs and colors for aesthetic appeal.

Today, one can get contact lenses in a variety of shapes, sizes, thickness, and in a variety of materials even for extended wearing. Contact lenses are classified into two categories and they are soft and hard types.

Hard contact lenses, after its introduction in the year 1940, have undergone a sea change in its design and quality.With the advent of new techniques.

The design improved first and from the year 1970 the hard contact lenses also started “breathing” like soft category of lenses and such breathing type hard contact lenses are called as RGPs or the Rigid Gas-Permeable contact lenses.

Today, the RGP is a safe bet for more flexibility and to get a proper fit in the place of earlier used hard contact lenses. Further, RGPs can also last longer and provide better comfort and vision like the earlier soft contact lenses or even better than them.

RGP contact lenses are manufactured with a strict quality control and computer aided lathes or manufacturing facilities are used for precision and sophistication so as to cater to the need of each and individual case.

For instance, in case you have astigmatism, then the RGP contact lens can be made to match your cornea perfectly thereby providing a better individualistic, healthier and comfortable fit.

And when it comes to the quality of the vision, then there is no comparison and what you get is the perfect corrected vision through your RGP contact lenses.

A yet another major advantage of RGP lenses is that it can be used as a cornea itself in case of any defective original cornea of your eye.

The greatest property of such kind of lenses is that it can retain the shape on the eye and hence can sit over the defective cornea forever giving a corrected vision on a continuous basis

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