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Contact lenses History

Contact lenses, like many other ground-breaking inventions, can be traced back to Leonardo da Vinci who created a drawing of a contact lens in the 16th century. It wasn’t until the end of the 19th century that the first experiments with glass were carried out; however, these glass contact lenses were extremely uncomfortable, impermeable to oxygen and covered the whole eye.

In the first half of the 20th century, glass was slowly replaced by plastic, but these versions also covered the entire eye. In the 60s, the Czech chemist, Otto Wichterle, developed a type of plastic which was used in the manufacturing of the first, soft contact lenses and the way was clear for the commercial manufacture of soft lenses.

Development continued in large steps through to modern high-tech lenses which are still undergoing innovation to this day. Contact lenses are a welcome alternative to glasses and can be used to correct most vision defects. Since they sit directly on the eye, they ensure a high level of comfort for the wearer, a great deal of freedom of movement, stereoscopic vision and a clear field of vision. Whether you spend a great deal of time working in front of a screen, take part in sports or are allergic – there are contact lenses suitable for everybody!

Soft contact lenses float on the tear fluid and absorb this and other individual metabolic products, dust particles and germs. This means that the wearing time of the individual types of contact lenses is limited. Taking medications (especially antibiotics, antidepressants, beta-blockers, etc) can influence or change the content of the tearfluid and may create lensdeposits.

These deposits may reduce the wearability of lenses.

Which Contact Lenses Do I Need?

The range of soft contact lenses spans one-day lenses, 14-day lenses and monthly lenses. Only a specialist contact lens professional can determine which contact lenses are the most suitable for each individual. It depends on the one hand on physiological factors such as the nature of the cornea, conjunctiva and tear fluid, and on the other, the expectations of the potential wearer. If you’ll be an occasional user, daily lenses are the best choice, and if you will be wearing them daily, monthly lenses are recommended.

Types of Contact Lenses

There are spherical contact lenses for simple short- or long-sightedness – short sightedness is corrected with minus values, and far-sightedness with plus values. Toric contact lenses help correct astigmatism.

Presbyopia (vision in old age) is characterised by a decrease in the eyes’ accommodative ability and can be treated with multifocal lenses.

Are you after a new look? Why not try coloured lenses?

There are a selection of daily, 14-day, or monthly lenses for the categories mentioned above.

Daily contact lenses are placed on the eyes every morning and are simply removed in the evenings - comfortable, sterile and without the need for any care products.

14-day lenses are removed from the eyes in the evenings and are kept overnight in a lens solution. Fewer deposits of proteins on the lens arise due to the shorter wearing time compared to monthly lenses.

There are monthly contact lenses which can be worn day and night and some which are taken out of an evening and carefully kept clean in a lens solution. They are kept in a contact lens holder filled with a special cleaning solution overnight. This ensures that the lenses are completely disinfected and the lens can be worn the next day free of germs and completely hygienic.

The cleaning solution not only has to be compatible with the material and product but, above all, also safe for the eyes! Soft contact lenses have a sponge-like structure through which they absorb tear fluid and other liquids, meaning they have a tendency to form deposits similar to other plastics. These deposits must be removed regularly.

Instructions for Use

Only touch the contact lens with clean, dry hands and make sure that the lens is intact and completely surrounded by liquid in the blister. Never use the lenses for more than the stated usage period.