Eye Healthy Care Information

Presbyopia is a term that is used when a person develops difficulty in seeing up close. It is related to the use of eye muscles to reshape the natural lens of the eye to achieve accommodation. Accommodation is a when the focusing power of the lens is increased and allows a person to see images up close.

The accommodative power decreases throughout life and eventually a person will need a positive power lens to improve the near vision. These lenses are often called “cheaters”. The need for these glasses is dependent upon a person’s eyeglass prescription. A nearsighted or myopic person can often decrease the need for reading glasses by taking off his/her distance glasses.

Why is this? Well, a nearsighted or myopic person has a location up close that they can see clearly without glasses. In mathematical terms it is 1/(the eyeglass prescripton) in meters. In optical terms is the near focal point of the eye.

For many people, the loss of near vision is a frustrating experience and they seek laser vision correction for treatment. In eyeglasses, they have an option of a bifocal style lens. However, this is not possible for laser vision correction. At this time a bifocal laser treatment cannot be applied to the cornea; the tissue that undergoes the laser treatment.

What can be done? The laser can create blended or monovision. In this scenario, one eye is corrected for distance and one eye is corrected for near. The eye that is corrected for near is made intentionally myopic or nearsighted. Once this occurs the patient will function in that eye like a nearsighted person. There will be a focal point at near where the vision is clear without glasses.

The reason this is called blended vision is because the eyes work together. One eye is more dominant for distance and one eye is more dominant for near. But both eyes has some functional vision at distance and near, although each eye dominates in one area.

For many people, this is a satisfactory experience. There are many contact lens users who wear monovision contact lenses. When considering monovision laser vision correction it is important to undergo a contact lens trial. If you are unsuccessful in a contact lens trial, I would not recommend monovision laser vision correction.

If you a successful in a contact lens trial, its important to know that the monovision correction that is appropriate at the time of surgery, many not be the same correction 3-4 years later. This is because the muscles continue to fatigue and accommodation continues to worsen even after the laser vision correction. A healthy outlook is being happy with being glasses free the majority of the time. If you would only be happy with 100% glasses free for the rest of your life, then I don’t think you’ll be satisfied with monovision.

Marc Hirsch M.D. is a practicing laser vision correction surgeon. He publishes a blog http://www.visioncorrectionsurgery.blogspot.com which discusses laser vision correction information.

Tags: laser eye surgery, lasik, LASIK Eye Surgery, presbyopialaser eye surgery, lasik, LASIK Eye Surgery, presbyopia

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Custom Lasik surgery

Custom Lasik surgery, also known as Wavefront Lasik surgery, uses detailed measurements to aid your surgeon in shaping your cornea. Custom Lasik uses individually customized, precise measurements, unique for each patient. Traditional Lasik surgery cannot give the same precision of individual correction that Custom Lasik can.

With Custom Lasik, your eye’s ability to focus light rays is measured, and a 3-D map is created that demonstrates irregularities in the way your eye processes images. Information contained in the map guides your surgeon in customizing the treatment to reshape your eye’s corneal surface so that these irregularities can be corrected.

How is Custom Lasik different from traditional Lasik Surgery?

Custom Lasik improves not only how much you can see, but also how well you can see contrast and fine detail. Both Custom Lasik and traditional Lasik Surgery can be used to correct myopia (nearsightedness), hyperopia (farsightedness) and astigmatism. But Custom Lasik is also able to treat the problems of glare, shadows, night vision distortion and halos.

How Does Custom Lasik work?

A perfectly shaped cornea allows light to focus evenly through the pupil and the light rays display evenly on the retina. A normal, less perfect cornea causes light to focus through the pupil at varying angles. These flaws in the cornea can cause light to strike the retina in irregular places causing halos, starbursts, glare or ghost like images.

Custom Lasik uses a special scanner to generate a very detailed, virtual map of your eye. This topographical map makes note of every imperfection of your eye and is unique, just like a fingerprint. Creating this topographical map of your eye helps your surgeon during your Custom Lasik surgery to improve your vision by knowing every detail of your eye.

How is This Virtual Map of your eye created?

Your surgeon will use a Lasik scanner to create a finely detailed map of the light rays as they travel through your eye, showing the imperfections in your vision. To do this you will be asked to place your head in the padded rest and stare past a target light, similar to a regular vision appointment. It is important that you relax your eye’s focus as much as possible. Next a beam of light will be sent through your eye’s pupil and focused on the retina. These light rays then reflect back from the retina and measurements taken of the irregularities in the pattern of light coming from your eye. The Lasik computer uses these detailed measurements to create a 3-D map of your eye and any imperfections found in your cornea. This precision information will assist your Custom Lasik surgeon in customizing the reshaping of your cornea.

The map of a ‘perfect’ eye without imperfections appears to be a flat surface and light rays are reflected back evenly through the eye. The map of a less-than-perfect eye appears curved because some of the light rays reflect back from the retina sooner than the others or reflect back from different points on the retina. Talk with your doctor and together you can determine if Custom Lasik surgery is right for you.

Beth Gabriel is a successful Webmaster and publisher of Lasik-Solutions.com. She provides more Lasik Surgery information and Custom Lasik reviews that you can read on her website from the comfort of your home at 2:00 am!

Tags: custom lasik, laser eye surgery, LASIK Eye Surgery, lasik surgery, wavefront lasikcustom lasik, laser eye surgery, LASIK Eye Surgery, lasik surgery, wavefront lasik

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Things are moving forward and new and advanced procedures are being developed for those who originally could not receive the standard Lasik procedure. Dr. Khanna has introduced a brand new procedure called “Super Lasik” a new, safer and more stable procedure that has now been created for those who have thin or abnormal corneas. What is great about this new procedure is the effects are more precise and long term. This procedure is a culmination of the merger of benefits of both PRK and LASIK. To accomplish this cutting edge surgery, Dr Khanna uses a new FDA approved instrument called a Epikeratome. This instrument raises an approximately 50 micron flap (thinner than even an Intralase). Laser surface ablation using the latest generation of LASERS is than done. Like in LASIK the flap is riposted back. A bandage lens is than placed over the eye. This is a safer method of visual correction. There is no distortion of the architecture of the cornea. So if the cornea has a young’s modulus which is low, or is thin or asymmetric this method is safer.
Young’s modulus= stress/strain

Anyone over the age of eighteen can benefit from corrective vision surgery. The investment pays for itself. What’s really exciting is that Superlasik can even be done on patients who have thin corneas and were not candidates for LASIK. Its also safer since minimal trauma is done to the cornea.
Patients leave with a new completeness and clarity with life because really, how we see things affects our total outlook on life. We have been impressed by the quick recovery following this new procedure. It has even been better than we anticipated. Most of our patients are able to drive the next day and some even return to work. People leave feeling rejuvenated and young, and in reality who wouldn’t want that?
What has been exciting is that this technology is even safer than Intralase or the all laser LASIK. The flap is more consistent and thinner than what the Intralase can fashion.

Can a Rose have no thorns? Superlasik may not be a panacea for all. If a patient has keratoconus or Pellucid marginal degeneration or other corneal disease than this procedure is not for them. Immunological disease and catracts may also preclude people.
For more info visit www.Khannainstitute.com

Dr. Khanna, a certified Master of Surgery, specializes in only the most advanced Lasik procedures such as laser wavefront, advanced surface, multi focal lenses, refractive lens exchange and refractive cataract.

He is a current member of the UCLA faculty, where he shares his surgical skills and expertise in the safest and most effective forms of refractive surgery with a new generation of ophthalmic surgeons. He is also an active member of the top ophthalmology organizations including the American Academy of Ophthalmology and the American Society of Cataract and Refractive.

With his extensive experience comes his need to make sure his patients benefit in every way possible from their procedures. Before surgery one will have pre-op consultations in which he will measure the cornea and dilate the eyes so that he can determine what procedure is right for that particular individual. With this dedication and patience comes the patient’s reward; a new and refreshing persp

Tags: ck, epilasik, eye, lasik, SANTA MONICA, vision correction, wavefront, westlake villageck, epilasik, eye, lasik, SANTA MONICA, vision correction, wavefront, westlake village

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