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Posts tagged ‘farsightedness’

Slim, Nice Figure, Ideal Weight and Attractive. What’s Being Described Here?

hi index eyeglass lensesIf you answered eyeglass lenses, you are correct!

Hi-index lenses offer people who wear eyeglasses with lens choices that are thin, light and attractive.

For people who have strong prescriptions for nearsightedness, farsightedness or astigmatism, hi-index lenses are a great way to avoid lenses that are thick, heavy and distort the natural appearance of your eyes.

The lenses in a pair of eyeglasses correct vision by bending or refracting light as it passes through each lens.  With conventional plastic and glass lenses, the more light that needs bent, the alternatives to thick eyeglassesthicker the lenses must be.

Hi-index lenses are different.  Here’s how they work and the benefits they offer:

Increased Light Bending Abilities

Hi-index lenses are made of a special material that is able to bend or refract light much more efficiently than conventional lenses.  This means less lens material needs to be used to bend the appropriate amount of light that corrects vision.

Thin Construction

Due to the increased ability to bend light, hi-index lenses are much thinner than conventional plastic and glass lenses. Therefore, the profiles of eyeglasses are not dominated by thick lenses when hi-index lenses are used.

Comfortable Wear

Because less material is used with hi-index lenses, they do not weigh as much as conventional lenses. This makes them light weight and comfortable to wear.

hi index lenses for eyeglassesAttractive

The fashions of today’s most popular frames have either very thin rims or no rims at all (rimless frames). The thickness of the lens becomes very important with these styles of eyeglass frames.  When lenses are too thick, the balance between the frames and lenses becomes disproportionate, resulting in a pair of eyeglasses that are not as cosmetically appealing as they could be with hi-index lenses.

Ask Your Eye Doctor About Hi-Index Lenses

Discuss hi-index lenses with your eye doctor to see if they are an option for you and your vision correction needs.  They may provide you with the function, comfort and appearance you desire in a pair of eyeglasses.

Learn more about quality eye care and eye wear from a company and a team of eye care professionals who have been providing a superior level of service for more than 35 years. Please visit www.shawneeoptical.com.

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Focus on Astigmatism

AstigmatismAstigmatism is a type of refractive error of the eye. It is not a disease of the eye. Rather, it is simply a problem with how the eye focuses light. Other types of common refractive errors include nearsightedness (myopia) and farsightedness (hyperopia). Frequently, astigmatism and nearsightedness or farsightedness affect one or both eyes simultaneously.

Clear and crisp vision is created by how different parts of the eye bend or refract light that passes through them. The process of refracting light to achieve perfect vision starts at the front part of the eye with the cornea. The process continues as light travels through the lens of the eye and ends with light properly focusing at a single point on the retina located at the back of the eye.

In an eye with astigmatism, there is an irregular shape of either the cornea or the lens of the eye. This irregularity makes it difficult to focus light precisely on the retina.  Instead, light comes to a focus either in front of the retina or behind the retina, resulting in distorted vision. Astigmatism usually will cause blurred vision in objects being viewed at both far distances in close proximity.

Corneal Astigmatism

The cornea is the clear, rounded-dome part of the eye covering the iris and the pupil. In a normal eye, the cornea is smooth and equally curved in all directions. As described above, this is essential for properly refracting light that enters the eye and creating clear vision. If the cornea has an irregular shape, it will not refract light properly. This type of astigmatism is called corneal astigmatism.

Lenticular Astigmatism

Just like with the cornea, the shape of the lens of the eye must be equally curved in all directions to correctly refract light and achieve perfect vision. If the lens has an abnormal shape, it will not bend light accurately. This type of astigmatism is referred to as lenticular astigmatism.

Correcting Astigmatism

Similar to nearsightedness and farsightedness, astigmatism can usually be corrected with eyeglasses or contact lenses.

In the past, rigid contact lenses could only be utilized for astigmatism. Now, special types of soft contact lenses called toric contact lenses are available for astigmatism.

The appropriate type of corrective lens used for the correction of astigmatism, whether eyeglasses, soft contact lenses or rigid contact lenses is typically determined by the severity of the astigmatism.

Surgery is also an option for some people to correct astigmatism, including laser eye surgery (LASIK).

Importance of Starting Regular Eye Exams Early in Life

Astigmatism usually causes vision to be distorted regardless of whether the object being viewed is close or far away.  The blurred vision from astigmatism may lead to squinting, eye strain and chronic headaches. For adults, these symptoms are easily identified. However, they may difficult for a child to recognize.

Astigmatism often occurs early in life. In fact, many people are born with it. Detecting astigmatism early is important for a child not only to identify and correct vision problems but also to help prevent other developmental issues.

The American Optometric Association (AOA) recommends infants have their first eye exam conducted when they reach 6 months of age. Testing for astigmatism is one of the reasons why an eye exam is important so early in a child’s life.

Learn more about quality eye care and eye wear from a company and a team of eye care professionals who have been providing a superior level of service for more than 35 years. Please visit www.shawneeoptical.com.

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