The contact lens history shows how they helped people see better and how they currently also fulfill their lifestyle needs. Here you’ll know how they were initially manufactured and what changes have been made. But as an introduction, we’ll first explain how contact lenses work.
You see objects when light beams hitting the retina, at the back of your eyeball, at the same point. When the light does not meet at the same point, vision becomes blurred.
To correct this vision problem a lens needs to be placed in front of the eye to compensate. With the help of the lens the eye can focus light beams at the retina. The popular eye glasses have long provided the needed correction for this eyesight problem.
But, contact lenses are an vision correction option that frees you from the hassle of slipping, fogging and distracting eye glasses. The inside surface of the contact lens is fitted to the shape of your eye so it stays in place. The outer surface is shaped to the corrected curve — as in eye glasses.
Physics of Contact Lenses and Contact Lens History
How were earliest contact lenses made? Earliest contact lenses were made of hard plastic that required saline solution drops on a regular basis to keep moist. They were also prone to popping out of the eye and causing discomfort when blinking.
Learning from contact lens history, manufacturers have made better lenses compared to the original ones available years ago. Newer contacts are made from a soft plastic that allows the eye to breathe. They are much more comfortable to wear. They require less maintenance during use because of their high water content of the material.
Soft contacts cling to the layer of tears covering the cornea and move slightly with each blink. This ensures that the eye stays moist and foreign materials can be safely washed out.
Contact lenses used to only correct common vision problems like nearsightedness, or myopia, and farsightedness, or hyperopia. During their development people with astigmatism or presbyopia can find contact lenses to suit their unique needs. Now even you with specific eye conditions such as dry eyes or severe astigmatism can have your eyes corrected with specialty contact lenses.
Extended Wear Contacts and Colored Contacts
There is an endless supply of new contact lens products on the market. You can find the perfect solution for your daily needs as well as for specific occasions.
Contacts are now available in a disposable variety that means no cleaning is required. There are also extended wear contact lenses that can be worn for a week or even a month without being removed and cleaned — great if you hate the daily hassle.
Many contact lens wearers are experimenting with changing the color of their eyes. While older versions produced harsh colors, new versions of colored contact lenses can be found in subtle shades and can even change dark eyes to light. The contacts are also available in “plano” design, for individuals who have no vision problems.
The Future of Contact Lenses
As contact lenses become more popular, many manufacturers are able to spend more money for research and product development. New materials research to enhance wearing comfort as well as to reduce the cost is one example of such a research. The companies are also developing colored contacts and other specialty contact lenses.
If you’re a professional golfer and you have specific requirements chances are you can find the answer in the currently available contact lens options. Contacts to better distinguish between the various greens on a golf course are the example.
So unlike previous generation lenses from the above contact lens history, contact lenses don’t only correct your vision. You can wear colored contacts for fun, as fashion accessories, for theatrical performances or in a professional sport championship. They eventually become the more preferred option among future generations.