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Webcontacts Pty Ltd
Webcontacts contact lenses online in Australia
Webcontacts contact lenses online in Australia

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Contact lenses are a very safe form of vision correction. It has been estimated by some studies that there is only a one in 10,000 risk of developing an eye infection wearing lenses, however, there are some activities that increase this risk. Contact lenses are designed to be moist and they maintain their water content from the tears in your eyes. However being exposed to water increases the risk of developing an ocular irritation or eye infection. This is particularly in freshwater where there is a chance of developing Acanthamoeba keratitis. Acanthamoeba is a germ primarily found in freshwater. Hot spas are another place where there is a greater risk of the water being contaminated thus increasing your risk of developing an eye infection. If you have to wear contact lenses in the spa don't immerse your head in the water.

So it is most prudent to not wear contact lenses swimming. However, if you have no alternative then you can take precautions and minimise your risk by wearing protective eyewear such as goggles while swimming. Also remember to follow your instructions on caring for your contact lenses and replace them according to the recommended schedule. Replace your contact lens case regularly and never use home-made contact lens solutions such as home-made saline.

Remember the golden rule of look good, feel good, see good. If your eyes develop any redness, scratchiness or foreign body sensation, or if your vision is blurred while wearing lenses, then immediately remove the contact lenses and check with your optometrist. 

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Both bifocal and multifocal contact lenses are generally required by people over the age of 40 and are designed to enable the wearer to see in the distance and near. They are designed to correct presbyopia.

There are two main differences behind bifocal and multifocal contact lenses.

Bifocal Contact Lenses
There are primarily two separate designs of bifocal contact lenses. One is a translating contact lens which is similar to bifocal glasses. The top part of the contact lens is focused for the distance and the bottom area is focused for close work. When the eye looks down to read, the bottom eyelid pushes the contact lens higher so that the wearer automatically looks through the reading portion of the lens. This style of lens is available in a hard gas permeable material. The other type of bifocal contact lens relies on concentric rings of alternating distance and near and are available in both soft and hard materials. There are various different designs and the most basic one has a donut design with the distance portion in the centre of the contact lens with a reading area around the circumference. Some more sophisticated lenses have alternating distance and near concentric rings and wearers will simultaneously see distance and close tasks. After a week or so the brain learns to of adapt and ignore one image while focusing on the other image. Often, until adaptation occurs, wearers notice that there is a slight edge or halo around objects and light sources.

Mutifocal Contact Lenses
Multifocal contact lenses can also be available in a translating style with the distance in the top of the contact lens and the power increasing to the reading portion at the bottom of the lens. These are only available in a hard gas permeable material. Aspheric style multifocal contact lenses are also available. These are similar to a bull's-eye with the power of the contact lens changing from the centre of the contact lens to the edge of the contact lens. Once again people tend to suffer from flare until they adapt to the contact lens.

Successful fitting of these contact lenses relies on a careful selection and fitting procedure as it is essential for the contact lenses to centre correctly for good vision to be achieved.

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Do you get tired eyes after work or at the end of the day? Do they get worse after prolonged near works or computer use? Eyestrain,also know as asthenopia, is one of the most common reasons people see an optometrist. It is frequently described as the eyes feel tired, achy, dry/watery, heavy and blurry, sometimes associated with headache. People usually experience it at the end of the day rather than morning. Ocular pain or discomfort early in the morning or that wakes you may indicate other, possibly more serious, conditions that must be checked by an optometrist. An eye examination can determine the main cause of tired eyes and appropriate management options too. Here are some possible reasons of tired eye and how to resolve and prevent it. 

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New research demonstrates that, in mice whose brains are under attack by Alzheimer’s dementia, exposure to lights that flicker at a precise frequency can right the brain’s faulty signalling and energise its immune cells to fight off the disease.

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What are the best eyedrops whilst wearing contact lenses?

Sometimes after a late-night or a day in air-conditioning your eyes may be a little irritated or dry. Either way sometimes your eyes need that little bit of help to make them more comfortable. A quick remedy if your eyes are feeling irritated are eyedrops.
The most common cause of ocular irritation particularly while wearing contact lenses is dryness. As well is causing ocular irritation, dryness of contact lenses can cause your vision to blur intermittently. You may sometimes find that your vision is fuzzy and you have to blink several times to clear it. Dry contact lenses are also more difficult to remove from the eye and more easily damaged. Both the ocular surface and the contact lens itself can be damaged if the lenses are dry and sticking to your eye. A remedy for this is to insert a lubricating eyedrop into your eye before removal of the contact lens.

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Tears: everyone has them but why? What are their purpose? In fact, the average person produces more than 100 litres of tears annually.

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Until the last few years there was no option available other than a custom lens if you suffered from astigmatism and presbyopia. Presbyopia is a condition where the crystalline lens inside the eye hardens with age, causing the vision to blur. Typically this occurs in the early 40s and progressively deteriorates.

Astigmatism is an eye condition where the cornea (which is the clear window at the front of the eye) is toroidal or egg shaped. Some people use the analogy that the eye is shaped like an egg rather than being shaped like a ping-pong ball. Contact lenses to correct astigmatism have been available for many years and are generally designed so that they do not rotate, as a different power is required in different meridians of the lens.

It is only more recently that soft disposable contact lenses have been available to correct both astigmatism and presbyopia. These lenses are otherwise known as toric multifocal contact lenses.

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There are a few strategies that can be used to reduce the symptoms of dry eye particularly in people wearing contact lenses.

We can concentrate on the environment, internal causes and the contact lenses themselves...

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10 years ago who would have thought that smart phones and computers would be such an integral part of our life. Most people become stressed if they leave their phone at home and cannot function without looking at the screen many hours a day either in their work life or home life. We are totally dependent on phones and screen-based equipment for our social life, entertainment and communication.

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Scientists have built a camera that simulates how sharks see each other deep down in the ocean, revealing how they glow through biofluorescence. 
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