Your eyes send electrical impulses along the optic nerve to the visual and other areas of the brain. The visual system is the part of the central nervous system. It interprets the information from visible light to build a representation of the world surrounding you.

The visual system accomplishes a number of complex tasks and is critical to your well being. Wearers of High Definition Progressive lenses report diminished neck, shoulder and back pain, as they no longer "aim" their heads nearly as much. With HD lenses you can see the world with optimal acuity in a larger field of view, vertically and horizontally.

If you want the best vision, you need the best technology. This new breed of progressive high definition lenses, unlike most lenses, are polished with computer controlled precision, on the inner surface.

image2High Definition Progressive Lenses

This new breed of progressive high definition lenses, unlike most lenses, is polished with computer controlled precision, on the inner surface.

image1High-Definition Progessive Lenses enlarge the effective area of optimal acuity. HD Lenses will increase your field of vision by up to 30% compared to conventional progressive lenses. HD Lenses achieve never before possible clarity, even if gazing upward, downward, or side to side. Lens distortion is also reduced by up to 20% o

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image2Eye Testing Explained...

Visual Acuity
A visual acuity test is a measure of how well you see or the sharpness and clarity of your vision. Your eye doctor will ask you to read letters on a chart while standing 20 feet away. The smallest letters you are able to read will be recorded as your acuity. Your visual acuity may be written as 20/20 if your vision is normal. If your vision is reduced, it might be recorded as less than 20/20, such as 20/100. If you have 20/100 vision, it means that you must be as close as 20 feet to see what a person with normal vision can see at 100 feet. Someone with 20/60 vision would need to move up to 20 feet away to read what a person with normal vision could read from 60 feet away.

Confrontation Visual Fields
A confrontation visual field measures your overall field of vision. Your vision is actually divided in the brain into four quadrants per eye. The test is administered by having you cover one eye. The practitioner sits approximately an arm’s length away, directly in front of you. The vision in each quadrant is measured by holding either one, two or five fingers up in each quadrant while having you fixate only on the doctor’s eye. You identify how many fingers are held up without looking directly at the fingers. The test is then repeated for the other eye. A visual field test also measures your degree of peripheral vision and checks for blind spots, called scotomas. Depending on the quadrants missed, systemic diseases such as strokes, glaucoma, hypertension, brain tumors and other eye diseases may be diagnosed. Occasionally, eye doctors use an automated computerized instrument, called a perimeter, to measure your visual field.

Extraocular Movements
This test measures the muscles that control eye movement. This is usually a simple test conducted by moving a pen or small object in different directions of gaze. Restrictions, weaknesses or poor tracking of visual objects are often uncovered.

Pupillary Tests
Pupillary reactions (the way your pupils dilate and constrict in response to light) can reveal a lot about the health of the eyes and your body. The nerves that control the pupil travel through a long pathway within the body. Therefore, certain pupillary reactions can reveal neurological problems. Serious conditions can be found this way. Your pupil reactions are tested with a very bright light directed toward one or both of your eyes. Your doctor may focus on one eye or swing the light back and forth to study the way your pupils change.

Cover Test
The cover test is performed to measure how well the eyes work together. It is a simple test in which the doctor asks you to fixate on a near or distant object. He covers one eye, pauses, and then uncovers it. He is evaluating your eye as it is uncovered, as it refixates on the target. This test helps to detect crossed eyes, (strabismus) lazy eye, (amblyopia) or a decrease in depth perception.

Retinoscopy is a test that gives your eye doctor a way to measure refraction, or your need for glasses. It is usually performed early in an exam to estimate the patient’s prescription for glasses. In most cases, the doctor will have you look at a very distant object, such as the large “E” on the eye chart. A device called a retinoscope will then be shown into your eyes. A prescription will be determined based on the degree of light reflecting off of the retina, usually fairly accurately. In addition to giving your doctor a starting point, it is also particularly helpful in young children and adults that may not be able to communicate effectively.

Most people remember refraction as the part of an exam in which the doctor asks the patient, “Which lens is better, one or two?” Refraction is a subjective test to measure nearsightedness, farsightedness, astigmatism or presbyopia. The doctor places an instrument, called a phoropter, in front of your eyes. A series of lens comparisons are shown to you. The doctor will ask you which lens is more clear. The results of the refraction test are primarily what the doctor uses to develop your final eyeglass or contact lens prescription.

Slit Lamp Examination
The doctor uses an instrument called a slit lamp, also called a biomicroscope, to examine the front (anterior segment) and back (posterior segment) part of the eye to evaluate the overall health of the eye. The instrument magnifies your eyes many times and uses a bright light to illuminate the eye structures. Each part of the eye, including the eyelids and eyelashes, conjunctiva, cornea, iris, crystalline lens and anterior chamber, is examined in a methodical manner to reveal any defects or diseases. Cataracts can be diagnosed using the slit lamp.

Tonometry is the measurement of the eye’s pressure, better known as IOP – intraocular pressure. Your eye doctor will instill a drop of anesthetic into your eye. He will then place a small amount of fluroscein (yellow dye) into the eye. A small device called a tonometer is moved close to the eye so that it gently touches the cornea, measuring the pressure of the eye. If eye pressure is higher than normal, your risk of developing glaucoma increases. (Some physicians prefer to measure eye pressure with the "air puff" test. A non-contact tonometer (NCT) determines eye pressure with a painless puff of air.)

Dilated Fundus Examination
The dilated fundus examination is usually the last step in a comprehensive eye examination. Your eye doctor will administer special eye drops to dilate your pupils. This increases the size of your pupil, giving the doctor a larger window in which to inspect the internal eye heath. The doctor is able to examine the vitreous, optic nerve, blood vessels, macula and retina. An instrument called a binocular indirect ophthalmoscope is worn on the doctor’s head. This frees the doctor’s hands to use a powerful lens to focus light emitted from the ophthalmoscope into the eye. With this instrument, the image is a bit smaller but the field of view is much larger, allowing the doctor to view the entire retina. The dilated fundus examination is a crucial part of an eye exam, as many eye diseases can be detected during the test.

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