HOME >> MEDICINE >> NEWS
Wavefront-guided LASIK improves contrast sensitivity

SAN FRANCISCO Wavefront-guided LASIK corrects higher-order optical distortions and provides significantly improved contrast sensitivity compared with standard LASIK. This is the conclusion of a study appearing in the March 2004 issue of Ophthalmology, the clinical journal of the American Academy of Ophthalmology, the Eye M.D. Association. Contrast sensitivity is the visual system's ability to detect subtle shades of gray between an object and its background.

In this comparative study conducted in Israel, 24 eyes of 13 patients were treated with wavefront-guided LASIK and 22 eyes of 12 patients were treated with standard LASIK. At one month after surgery, it was found that 88 percent of the contrast sensitivity measurements improved in the wavefront group, whereas only 40 percent improved in the standard group. Also, uncorrected visual acuity of 20/20 or better was achieved by 72 percent of the wavefront group and by 70 percent of the standard group.

Igor Kaiserman, MD, an ophthalmologist at Hadassah Medical Center in Jerusalem and lead author of the study, explained, "LASIK has a high rate of improving uncorrected visual acuity, but it can degrade the quality of vision, resulting in reports of reduced night vision clarity, glare and halos. This is the result of reduced contrast sensitivity, which is greater among patients with high degrees of nearsightedness. One reason for reduced contrast sensitivity is the increased higher-order distortions caused by the LASIK procedure. Because wavefront measurement provides a more precise and detailed map of the visual system's distortions, wavefront-guided LASIK reduces these distortions, resulting in an improved quality of vision."

Academy spokesperson Scott MacRae, MD, professor of ophthalmology and visual science at the University of Rochester Medical Center, Rochester, New York, said, "I agree that customized wavefront treatments should be incorporated into refractive surgery practices because t
'"/>

Contact: Media Relations
media@aao.org
415-561-8534
American Academy of Ophthalmology
1-Mar-2004


Page: 1 2

Related medicine news :

1. Wavefront LASIK demonstrated superior to conventional LASIK
2. Temperature and humidity can affect LASIK surgery results
3. Wavefront LASIK advances refractive surgery
4. People with large pupils can now get LASIK and avoid night vision disturbances
5. Having dry eye before LASIK surgery is a risk factor for severe dry eye after surgery
6. Hormonal treatment improves survival in high-risk prostate cancer patients
7. Growth hormone treatment improves symptoms of metabolic disorder in postmenopausal women
8. New substance that improves the photodetection of bladder cancer gains market approval
9. Most advanced CT scanner improves imaging of heart, avoids need for surgical inspection
10. Columbia study finds hemophilia therapy dramatically improves outcomes for bleeding stroke
11. New test improves detection of bladder cancer

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Wavefront guided LASIK improves contrast sensitivity

(Date:4/17/2014)... international research team led by Cesar A. Arias, M.D., ... at Houston (UTHealth) has identified a new superbug that ... report appeared in the April 17 issue of ... new superbug is part of a class of highly-resistant ... MRSA, which is a major cause of hospital and ...
(Date:4/17/2014)... is less than 40 years away from a food ... governments, according to a top scientist at the U.S. ... human history, food production will be limited on a ... energy," said Dr. Fred Davies, senior science advisor for ... become as politically destabilizing by 2050 as energy issues ...
(Date:4/17/2014)... its status as the leading weapon against the deadly ... with new research indicating it simply needs to be ... of the cheap anti-malarial drug chloroquine in treating and ... more than half a million people each year around ... developed resistance to chloroquine, but research carried out at ...
(Date:4/16/2014)... SAN ANTONIO, Texas (April 16, 2014) A team that ... of Texas Health Science Center at San Antonio, Johns Hopkins ... protein that helps a common fungus to infect the body. ... infections, diaper rashes and oral thrush, and is the most ...
(Date:4/15/2014)... Scientists have solved a decades-old medical mystery and in the ... fungal infections, which kill about 1.5 million people a year. The ... an antifungal drug that has been in use for more than ... human cells as it is to the microbes it attacks. , ...
Breaking Medicine News(10 mins):Health News:New MRSA superbug emerges in Brazil 2Health News:Food shortages could be most critical world issue by mid-century 2Health News:Scientists find new way to fight malaria drug resistance 2Health News:Potent, puzzling and (now less) toxic: Team discovers how antifungal drug works 2Health News:Potent, puzzling and (now less) toxic: Team discovers how antifungal drug works 3
(Date:1/15/2014)... ChinaMarketResearchReports.com adds "China Orthopedic Instrument Industry Report, 2013-2015" research ... http://photos.prnewswire.com/prnh/20140115/MN46792 ) Benefiting from aging of ... orthopedic instrument industry has seen rapid development ... 3.28 billion yuan in 2006 to 9.85 billion yuan ...
(Date:1/15/2014)... 2014 As health officials across the Midwest warn against ... in Michigan will offer free diagnostic ... Meijer pharmacists to administer tests and, in some cases, fill ... participating in the study. The Grand ...
(Date:1/15/2014)... , Jan. 15, 2014  Celsion Corporation (the "Company") (NASDAQ: ... received commitments from institutional investors to purchase an aggregate ... in an at-the-market registered direct offering, led by a ... into definitive purchase agreements with these investors pursuant to ...
Breaking Medicine Technology:Orthopedic Instrument Industry in China Markets Forecast to 2015 2Orthopedic Instrument Industry in China Markets Forecast to 2015 3Meijer Pharmacy Offers Free Flu, Strep Testing as Influenza Cases Rise Across the Midwest 2Meijer Pharmacy Offers Free Flu, Strep Testing as Influenza Cases Rise Across the Midwest 3Celsion Corporation Announces $15 Million At-The-Market Registered Direct Offering 2Celsion Corporation Announces $15 Million At-The-Market Registered Direct Offering 3
Cached News: