How You See the World | How the World Sees You

Posts tagged ‘eye wear’

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.

Advertisements

Three Main Types of Retinal Detachment

Eye anatomy and eye careThe retina is a thin, light-sensitive membrane covering the rear of the eye. It’s the part of the eye where images are focused by the cornea and lens. The images displayed on the retina are transmitted to the visual centers of the brain by the optic nerve. In fact, the retina is technically part of the body’s central nervous system and is considered brain tissue.

Approximately 95% of the retina is responsible for side vision or peripheral vision. The remaining 5% located in the very center of the retina is known as the macula and allows for central vision.

If the retina becomes damaged or separates from the back wall of the eye, it’s a condition known as retinal detachment.  When a retinal detachment occurs, it’s a serious condition that needs attention. A retinal detachment causes the retina to separate from its blood and nutritional supply which could lead to loss of peripheral vision, central vision or both.

There are three (3) main types of retinal detachment:

retinal detachmentRhegmatogenous Retinal Detachment (RRD)

This is the most common type of retinal detachment. The term rhegmatogenous means “arising from a rupture or a fracture”.  Rhegmatogeous retinal detachment occurs when there is a hole or a tear in the retina. The break in the retina allows the gel-like substance from the vitreous cavity of the eye to seep through the opening causing the retina to detach from the eye wall.

Tractional Retinal Detachment (TRD)

A tractional retinal detachment is a retinal detachment caused by the gel like substance within the vitreous cavity of the eye pulling on the retina which eventually causes the retina to detach from the rear eye wall.

Exudative Retinal Detachment (ERD)

An exudative retinal detachment occurs as a result of a leak under the retina which allows the gel-like vitreous substance to enter behind the retina. These types of leaks are typically caused by inflammation.

Symptoms of Retinal Detachment

Flashing lights and eye floaters are common early symptoms associated with a retinal tear or retinal detachment.  If a dark shadow or dark curtain obscures a portion of vision, this is also an indicator of retinal detachment.  Anyone who experiences these symptoms should schedule an exam with their eye doctor immediately.

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.

Can Your Student See the Blackboard – or Rather, Whiteboard at School?

Vision and LearningRemember when teachers used to write with chalk on blackboards? Today, those blackboards, chalk and erasers have been largely replaced with whiteboards, markers and Power Point presentations.

The question parents and teachers ask their students still remains just about the same:

“Are you having any trouble seeing the blackboard whiteboard at school?”

Parents and teachers know vision plays a vital role in a student’s ability to learn.  In today’s technology driven world, a student’s reliance on clear vision for learning is greater than ever. Research studies show a direct link between vision and a student’s performance in the classroom.

More Information Learned Visually

Various research studies conducted in educational theory show that visual learning is among the very best methods for teaching students of all ages how to learn.

According to the research, students remember information at a much higher rate when that information is presented visually.

Visual Clarity Improves Learning 

Studies also show that visual clarity of the information being studied greatly impacts the ease at which it is learned and the attitude of the student.  Students have a positive approach to the information if they can see it clearly and easily. This has huge implications on learning. A student’s feelings and perceptions about learning determine the student’s level of motivation, comprehension and retention. Crisp and clear vision is critical for optimal academic performance. If a student has a vision problem, they are likely to be frustrated with school and develop a poor attitude towards their education.

Color Vision for Whiteboards and Computer Screens

The increasing use of whiteboards and Power Point presentations in the classroom allow teachers to use a wide variety of colors in their teaching. If a student has an issue with their color vision (color blindness), they may not be able to see or distinguish important parts of the teacher’s presentation. This can have a significant impact on understanding a teaching lesson and learning. Boys are more likely to have issues with color vision than girls.

Importance of Regular Eye Exams

Academic performance is yet another reason why attending regular scheduled eye exams are so important. Talk to your eye doctor about your child’s academic performance and whether they are having trouble seeing the information presented to them in the classroom. It can be surprising how well a student’s grades improve when vision problems are corrected.

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. While on the website, notice the special eyeglass frames offered just for children. Shawnee Optical’s KidSpecs program provides kids of all ages with hundreds of frames choices. After all, kids want to look good too!

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.

Shawnee Optical Announces New Location in Ashtabula, Ohio

Shawnee Optical Ashtabula, Ohio LocationFor more than 30 years, Shawnee Optical has been providing generations of families with superior eye care, quality eye wear and unmatched customer service. The company has earned a well deserved and trusted reputation throughout Ohio and Erie, Pennsylvania as a trusted and reliable source for serving the optical needs of every family member from the youngest to the most senior.

That reassuring tradition of quality eye care and eye wear will soon be available to families in the Ashtabula, Ohio area. Shawnee Optical announced today it will be opening a new office on April 18, 2012 located at 3705 State Road in Ashtabula.

“We are proud and honored to join the Ashtabula community”, exclaimed Bob Leonardi, president of Shawnee Optical. “We look forward to serving the eye care and eye wear needs of Ashtabula residents and becoming long-time members of this fine community”, he added.

With the opening of the new Ashtabula location only a few weeks away, Shawnee Optical has already started to take appointments for eye exams. If you would like to schedule an appointment, please call (440) 997-2020.

To learn more about Shawnee Optical or to schedule an eye appointment any time day or night, visit the Shawnee Optical website at www.shawneeoptical.com.

For those constantly on the “go”, Shawnee Optical recently launched an easy-to-use and convenient mobile website. Access information about eye care topics, view the latest eyeglass frame fashions or schedule an eye exam using your smart phone or other mobile device.

Children Shouldn’t Be Scared of Cycloplegic Refraction

Cycloplegic refraction explained by Shawnee OpticalThe term “cycloplegic refraction” certainly sounds intimidating. Tell this to a child and it can be understandably frightening.  As with many unknowns, a little knowledge and setting expectations can take away unnecessary fears.

What is Cycloplegic Refraction?

Cycloplegic refraction is nothing more than a procedure used by eye doctors to gain an accurate reading of a person’s refractive error to help them see more clearly and comfortably.

Refractive error is the inability of a person’s eye to bend light correctly. If light is not refracted properly as it enters the eye, the result is distorted vision.

During the testing in an eye exam, a patient’s eyes may auto- focus, or accommodate, which leads to inaccurate and inconclusive testing results. When your eyes are auto focusing, your eye doctor cannot decisively determine your true eye prescription.

Cycloplegic refraction temporarily stops the eye’s ability to auto focus allowing your eye doctor to correctly ascertain your prescription and optimize your ability to see clearly and comfortably.

Why is Cycloplegic Refraction Common with Children?     

Cycloplegic refraction is often times used with children. Children have a strong ability to unknowingly accommodate, or auto-focus, their vision which makes eye exams yield inaccurate or incomplete results.

As described above, cycloplegic refraction briefly suspends a child’s ability to auto-focus. This provides the eye doctor with an uninterrupted opportunity to obtain an exact reading on the child’s refractive error and derive a true and accurate prescription.

What to Expect with Cycloplegic Refraction

Cycloplegic eye drops are placed in the patient’s eye to prevent the ciliary muscle of the eye from contracting and relaxing. This muscle is attached to the crystalline lens of the eye and controls the shape of lens.

There are a variety of cycloplegic eye drops which differ in strength and duration.  When these eye drops are applied, it causes the pupils to dilate and vision will become blurred for a few hours. Some patients also experience tearing and redness in the eyes.

Not Just for Children

Cycloplegic refraction is not exclusively for children. Adults sometimes need this procedure performed to gain a more precise eye prescription. If eyeglasses do not provide the level of clarity needed, this procedure may be appropriate to deliver a refined eyeglass prescription.

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 30 years. Please visit www.shawneeoptical.com.

Eye Glasses: a History and the Future

eye glasses Shawnee OpticalEye glasses are in the process of changing significantly. The eye glasses of tomorrow will be noticeably different than the variety of lenses and frames being offered today.

Eye Glasses History Lesson

Historians generally give credit to Italian monks for fabricating the first pair of eyeglasses at some point between the years 1285 – 1290. These spectacles, as they were commonly called, were used for reading.  Eye glasses to correct distance vision are estimated to have been crafted in the early 1400’s.

One of our Founding Fathers, Benjamin Franklin, invented bifocal lenses in the year 1784 which allowed for correction of both distance vision and near vision in the same lens. An Englishman, Sir George Airy, designed lenses to correct astigmatism in 1825.

Trifocal lenses which have three specific powers (one for near vision, one for intermediate vision and one for distance vision) were produced by inventor and musician John Hawkins in the year 1826.

In 1958, Essilor International introduced progressive multifocal lenses which further enhanced lenses with multiple powers for distance, intermediate and near vision.

Innovations in Eye Glasses

Technology is playing an increasing role in the evolution of eyeglasses. Lenses have been developed and continue to be refined whereby the entire lens adjusts with your vision needs.

Electronic eye glasses have been designed with a special type of lens filled with a clear crystal liquid layer that can be electronically controlled automatically or manually. A touch of the finger to the side of the frames or a tilt of the head in a certain direction changes the entire lens to serve your vision needs. If you want to read something, a tilt of the head downward will cause the eyeglasses to automatically adjust the entire lens for near vision. A split-second swipe of the finger across the temples of your frames will allow you to look up from what you were reading and see a distant object clearly through the convenience and comfort of the entire lens.

Electronic glasses are powered by a battery and need to be re-charged. They are currently offered to the public but as you may guess with any emerging technology, they are rather pricey today.

Computing via Eyeglasses

While not targeted towards vision correction, electronic display eyeglasses are being developed that use eye movements to control presentation of information. These eyeglasses contain a microchip that takes data from a PDA (Personal Digital Assistant) and displays it directly on the person’s retina, creating an illusion that the images and text are a few feet away. Eye movements can control menus, search information, play video and conduct many other tasks routinely performed on desktops, laptops and mobile devices today.

This advancement in eye wear is still in the prototype phase. The technology is not yet at a point where its purchase and every day use are feasible.

Discuss emerging eye wear technologies that may serve your unique vision needs, lifestyle and budget with your eye doctor at your next eye exam. The options and the choices are changing.

To learn about a company and a team of eye care professionals that have been providing their patients with quality eye care and eye wear for more than 30 years, please visit www.shawneeoptical.com.

Tag Cloud