Battling Vision

The types of contact lenses available today are nearly as numerous as the corrective issues they’re designed to correct. But today’s contact lenses don’t even need to be corrective in nature. Many are purely aesthetic, enabling a wearer to change eye color from brown to violet, for example, or to change from the appearance of human eyes into eyes that resemble that of a cat or wolf or even an alien!

Contact lens prescriptions include information on proper fit, measuring such attributes as curvature and diameter. But the prescription also contains other pertinent information such as proper measurements for correcting vision as well as the brand of contact lens believed most suitable for the patient’s situation.

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A color deficiency is what most people mistakenly refer to as color blindness. Labeling an individual as color blind is inaccurate because overall a person’s eyes function properly. The individual is able to detect, focus on and process images. Except for the condition called monochromacy, an affected person is not blind to color.

An individual with a color defect has difficulty distinguishing hues. Such a problem stems from the specialized cell receptors in the eyes called cones. Three different cones contain pigments that absorb various amounts of light. Wavelengths determine the amount of pigmentation the cones absorb and the absorption determines how the eye detects and blends the primary colors of red, green, blue and yellow. More →

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More than 60 million individuals around the world have cataract. Cataract is the #1 cause of blindness but fortunately, cataract is highly treatable with cataract surgery.

What is Cataract?

Over time the eye’s lens, which is transparent in a healthy eye, starts to become cloudy or opaque. As individuals age, protein levels in the eye begin to decrease which is why there is no way to effectively prevent cataract from developing. Other factors can cause cataract such as head injury and certain diseases, but their appearance is primarily due to age.

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