Friday, February 4, 2011

Vision Correction Options in Las Vegas

Las Vegas cataract surgery
LASIK (Laser In-Situ Keratomileusis)
In Las Vegas LASIK is the most advanced refractive surgical procedure available today and can correct low to severe degrees of myopia and astigmatism and moderate degrees of hyperopia (farsightedness). It also requires a higher degree of skill and experience on behalf of the surgeon.

Clear Lens Extraction
Clear Lens Extraction involves removing the internal lens of the eye, just like in a typical Las Vegas cataract surgery. This is done with a special ultrasound instrument and may be done with eye-drop anesthesia (similar to LASIK). The procedure can be performed without the need for stitches. A flexible synthetic lens implant of the proper power is then placed inside the eye through an extremely small incision to correct the refractive error.

This procedure is more commonly performed for treating higher levels of farsightedness in patients over age forty. The optical results are excellent and the visual recovery period is brief. Clear Lens Extraction may also be used to correct higher levels of nearsightedness and may be fine tuned with LASIK if a small refractive error remains. Your doctor may discuss this procedure with you if you are not a candidate for PRK or LASIK.

PRK (Photorefractive Keratectomy)
Photorefractive Keratectomy is performed to correct mild to moderate degrees of myopia and astigmatism, and requires no incisions. With PRK, the surgeon uses the computer-assisted Excimer Laser to flatten the cornea by removing a layer approximately the thickness of a human hair. There is no pain during the procedure, as anesthetic eye drops insure maximum comfort.

The laser is a cool, non-thermal form of light energy that does not burn or damage the delicate tissue surrounding the treated area. The surface of the eye heals within three days, during which time a protective contact lens is worn.

The eye is anesthetized with eye drops. Rather than removing the corneal surface layers as described for PRK, a precision instrument called a “microkeratome” is used to create a thin flap of corneal tissue that remains attached to the eye in a hinge-like fashion. After the Excimer laser sculpts the deeper corneal layers, the flap is replaced to its original position. In this way, the healing time needed for the surface cells to regenerate is eliminated and post-operative comfort is maximized.

Wavefront – Guided LASIK
Wavefront-guided LASIK is a variation of LASIK surgery in Las Vegas where, rather than applying a simple correction of focusing power to the cornea (as in traditional LASIK), our surgeon applies a spatially varying correction, guiding the computer controlled excimer laser with measurements from the wavefront sensor. The goal is to achieve a more optically perfect eye, however, the final outcome of this technology depends on the success of the surgeon in predicting changes which will occur during healing. Las Vegas LASIK surgeon, Dr. Hiss, has successfully calculated thousands of LASIK outcomes using the Wavefront-guided technology with lowered incidence of “halos” and higher patient satisfaction.

For More Informative Details You Can Visit the Site:
http://www.drhiss.com/glaucoma-las-vegas-reno-henderson.htm

Wednesday, January 19, 2011

Common Cataract Surgery Procedures in Las Vegas

In Las Vegas Cataracts are a common problem in people over the age of 60. This eye defect is characterized by the development of protein clouding the eye’s clear lens. Although their cause is unknown, cataracts can become a big problem and interfere with daily life, especially if left untreated, as vision becomes more and more impaired.

Blurred vision and increase of nearsightedness are common symptoms of cataracts Las Vegas eye experts often suggest different types of treatments. Cataracts may be removed surgically, however which procedure is employed will be at the discretion of your doctor. Once the cataract has been removed an artificial lens must replace it, so that the eye can have the ability to focus.

In Las Vegas cataract surgery almost always involves making an incision in the surface of the eye. Depending upon the severity, size, location and development of the cataract, this incision will be either near or directly on the cornea.

Phacoemulsification is considered the preferred method of cataract surgery in Las Vegas and is also the most common. This type of cataract removal surgery is ideal because it requires both the smallest incision and the shortest recovery time. Another advantages of this procedure is that no stitches are required after surgery. An ultrasonic probe is used to create vibrations, which when emitted will dissolve the cataract. The cataract is then removed from the eye using suction.

Extracapsular cataract surgery is a more involved technique which may be suggested when the cataract has advanced to the point where it must be taken out in one piece. An anesthetic injection, some suturing and an eye patch are required, to help the healing process. With extracapsular cataract surgery Las Vegas experts say the recovery time is generally longer than phacoemulsification because of the larger incision required.

Intracapsular surgery is the most invasive type of cataract treatment. With this technique, which is generally only employed in the most severe cases, not only the capsule, but the lens itself is also removed. This type of surgery requires the longest amount of time to heal. If you live in the Las Vegas, or Reno, Nevada area and are interested in learning more about which type of cataract treatment may be right for you, visit your local eye care specialist, or call 775-674-1100.


For More Details You Can Visit :
http://www.drhiss.com/lasik-surgery-las-vegas-reno-henderson.htm

Sunday, December 5, 2010

Treatment for Cataracts in Las Vegas

The best treatment for cataracts in Las Vegas is a relatively simple operation to remove the cloudy lens which can cause vision blur. In the past, surgeons often waited to remove the cataract until vision was very poor. Nowadays however, the operation is usually performed as soon as eyesight affects everyday activities.

In Las Vegas cataract surgery is performed on a regular basis, usually patients are over 60. Before the operation, an eye and vision assessment is done by the doctor. Usually a local anaesthetic is given. The patient will be awake but will feel nothing. During the operation, the eye specialist should be telling the patient what is happening throughout the entire procedure. It is his or her job to make sure that the patient is feeling relaxed and comfortable.

In Las Vegas cataract surgery is done with the aid of a microscope, through a tiny opening in the eye. The procedure relatively quick, taking about 15 to 20 minutes, though sometimes a longer operation may be needed.

The most common Las Vegas cataract treatment is a clear lens replacement, or intraocular lens implant. The lens with the cataract is removed and a clear plastic lens is substituted so that vision is restored. The intraocular lens implant (IOL) remains permanently in the eye and is made from a substance which will never be rejected by the body.

After the operation there is usually an instant improvement in vision, though it will take several months to complete the healing. Since most IOLs are used normally for distance rather than near vision, eye-glasses may still need to be used for reading.

Patients will need to use medicated eye drops for up to two months after the operation. Most people will be able to return home on the same day. Recovering patients should not rub or touch the eyes, refrain from heavy lifting, avoid unnecessary sunlight, eye makeup or getting soap in the eye.

For Details Visit: http://www.drhiss.com/yag-laser-procedure.htm

Tuesday, November 16, 2010

What Happens During Cataract Surgery?

By the age of 40 to 45, most people begin to experience some of the visual effects that result from changes in the eyes crystalline lens. Even patients who have had normal vision throughout life will notice that their vision begins to change.

A cataract is a loss of transparency, or clouding, of the normally clear lens of the eye, most commonly caused by the normal aging process. As one gets older, chemical changes occur in the lens that make it less transparent. When the lens gets cloudy enough to obstruct vision to any significant degree, it is called a cataract. When a cataract occurs, glasses or contact lenses cannot sharpen your vision completely. The only remedy is surgical removal of the cataract combined with implantation of a synthetic lens implant.

The aim of cataract surgery is to remove the cloudy natural lens on the iris. After the removal process, the natural lens is replaced with a permanent intraocular lens (IOL) implant. The decision of having cataract surgery depends on how well a person can see during daily activities. One will be able to watch television, be in front of computer and drive several hours even after developing cataracts. Las Vegas eye care specialists at Eye Care Associates Nevada can help diagnose and correct vision affected by cataracts and other eye problems.

A person who has cataracts undergoes visual problems such as ghost images and declining visual clarity, which cannot be solved with contact lens or glasses. Some may also experience color fade. If one feels that his or her functional vision has declined significantly and he or she cannot carry on regular activities with ease, then cataract surgery can be a viable option.

In Las Vegas cataract surgery is carried out in an outpatient basis. The patient will be asked to avoid breakfast and drinking fluids, depending on the time of the surgery. Eye makeup should also be avoided on the day of the surgery. Once the patient arrives at the operating site, he or she will be given eye drops to dilate the pupils and sometimes mild sedative to become more relaxed. To make the operation painless, local or topical anesthetic is often used.

A detailed cleaning will take place in the skin near the eye and the eye and head will be covered with sterile coverings. One incision will be made into the eye using the help of an operating microscope. Then the surgeon will remove the cloudy lens. The same operation can also be performed using an ultrasonic driven instrument that breaks up the cataract sonically as it is taken out from the eye. Another surgical method includes the breaking of the cloudy lens mechanically into small pieces and removing them from the eye through a small incision with a help of special instruments.

Then the surgeon will replace the natural lens that was removed with a plastic or silicon IOL inside the eye. Although most of the incisions are self sealing, some incisions may need to be sutured occasionally. If stitches are used, they hardly need to be removed. In Las Vegas IOL implantation is a relatively simple and successful procedure when all the proper care is administered.

After cataract surgery Las Vegas specialists recommend a very strict recovery process. A protective shield is placed over the eye once the surgery is over. After a short time staying in the recovery area, the patient can return home, but only with the help of someone else driving for him. During the next few weeks he need to take eye drops several times a day as prescribed by the surgeon. He will also have to be careful while sleeping, and it is recommended that he should use eye protective shield for a week or so. To protect the eye from sun’s bright light, he will be provided with sun shades.

For More Informative Details Visit:
http://www.drhiss.com/henderson-lasik-surgery-center.htm

Friday, October 29, 2010

Cataract Rate in Men Increases with Height, Waist Size and BMI



Across the globe Cataracts are the leading cause of preventable blindness, and cataract surgery is among the most common surgical procedures in people over 65 years of age in the United States. Last year, 2,775,000 procedures were performed in the U.S. A cataract is the clouding of the normally clear, natural crystalline lens of the eye. As cataracts increase in size and density, they reduce the amount of light passing through the lens, which results in blindness if not treated. With modern cataract treatment Las Vegas physicians like Dr. Paul Hiss surgically remove the damaged lens and replace it with an artificial one.

In a 14 year study performed by Debra Schaumberg and other prominent physicians it was found that greater height and waist size ratio were proven independent risk factors for cataracts in men. Cataracts are a major public health problem in the United States, with an incidence of 20% of people aged 65-74 and 50% of people aged 75+.

After adjustment for age, lifestyle and other factors, men with the highest waist-to-hip ratios (WHR) were 1.55 times more likely to develop cataracts as those with the lowest WHR. The tallest men in the study (at least 6 feet and taller) were 1.23 times more likely to develop cataract than shorter men, and 1.5 times more likely to undergo cataract surgery. Chief surgeon for Eye Care Associates of Nevada Dr. Paul Hiss regularly performs Las Vegas cataract surgery on patients of a similar nature.

The 17,150 participants of this study were a subset of the larger Physician's Health Study. All subjects were healthy male U.S. physicians aged 40-84 in 1982 and were grouped into samples based on their BMI, height, and WHR. The subjects self-reported any and all incidents of cataract and cataract surgery which were then confirmed with medical records. Higher BMI, greater height, and higher WHR were consistently associated with a greater relative risk of cataract, even when adjusting for as many as eight potentially confusing variables.

Las Vegas Cataract specialist Dr. Hiss, along with the authors of the study suggests a possible genetic susceptibility in the case of height. WHR, which was consistently associated with higher risk of cataract in the study, is a valid measure of abdominal fat which is also a strong risk factor for Type 2 diabetes and high blood pressure. Diabetes causes earlier cataract formation, and thus several pathways are suggested to account for the relationship between abdominal fat deposition and development of cataracts.

Information supplied by The American Society for Clinical Nutrition. This information should not be construed as medical advice. For more information, consult your local Las Vegas Cataract Surgeon. To see the complete text of this article, please go to: http://www.faseb.org/ajcn/December/(11579)-Schaumberg.PDF or http:// www.faseb.org/ajcn/December/(12242)-Taylor.PDF

*Schaumberg, Debra et al. Relations of body fat distribution and height with cataract in men. Am J Clin Nutr 2000;72:1495-1502.


For More Informative Details You Can Visit the Site:
 http://www.drhiss.com/laser-vision-correction-las-vegas.htm