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:12/22/2014)... OH (PRWEB) December 22, 2014 Explorys, ... three additions to its leadership team: Greg Yarrington as ... of Engineering, and Patrick Wells as Vice President of ... to add 80 new jobs in 2015 to support ... expansion of its platform-as-a-service offerings, and growth of its ...
(Date:12/22/2014)... CA (PRWEB) December 22, 2014 ... now offering consultations for sleep apnea. Drowsy drivers are ... than drivers who are well-rested, and some experts believe ... the roads as intoxicated drivers. Unfortunately, millions of Americans ... the American Academy of Sleep Medicine, about 18 million ...
(Date:12/22/2014)... (PRWEB) December 22, 2014 Christmas is days ... has a fast and easy solution that will please: the ... can be purchased from from $25 up to $350," says ... 100% customer satisfaction and a wide array of skin care ... fees and no expiration dates. , Gift delivery past ...
(Date:12/22/2014)... Washington, DC (PRWEB) December 22, 2014 ... Nursing Leadership Conference, next month in San ... strategies to address dynamics that often stand in ... authority, and competition. , This premier faculty ... Center for Transformational Leadership, whose mission is to ...
(Date:12/21/2014)... (PRWEB) December 22, 2014 BellasDress.com offers ... more for women. Today, it announces its BellasDress ... products at its online store. , BellasDress is a ... benefits to its fans through a series of promotions. ... for every customer. , “We are proud of ...
Breaking Medicine News(10 mins):Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 2Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 3Health News:Pasadena Dentist, Dr. Marine Martirosyan, Now Offers Consultations for Sleep Apnea 2Health News:2015 NLN Leadership Conference February 5-7 San Antonio 2Health News:2015 NLN Leadership Conference February 5-7 San Antonio 3Health News:BellasDress.com Announces its BellasDress Christmas Sale 2
(Date:12/19/2014)... and CARDIFF-BY-THE-SEA, Calif. , Dec. ... SRNE ;  Sorrento), an oncology company developing ... Conkwest, Inc., a privately-held immuno-oncology company developing proprietary ... cell-line based therapy, announced today that the companies ... develop next generation CAR-TNK™ (pronounced as "Car-Tank") immunotherapies ...
(Date:12/19/2014)... , Dec. 18, 2014  Decision Resources Group finds ... United States will increase to a value ... primarily driven by expansion in the large direct energy ... will be increasingly adopted due to the advantages they ... Other key findings from Decision Resources Group,s coverage of ...
(Date:12/19/2014)... Kan. , Dec. 18, 2014   ... ), a biopharmaceutical company focused on the licensing, ... animals, today announced positive results from its pivotal ... drug for treating pain in dogs with osteoarthritis. ... in pain assessment scores that were statistically significant ...
Breaking Medicine Technology:Sorrento and Conkwest Announce Exclusive Global Collaboration 2Sorrento and Conkwest Announce Exclusive Global Collaboration 3Sorrento and Conkwest Announce Exclusive Global Collaboration 4Sorrento and Conkwest Announce Exclusive Global Collaboration 5U.S. Laparoscopic Device Market Will Reach Over $4.3 Billion by 2023 2U.S. Laparoscopic Device Market Will Reach Over $4.3 Billion by 2023 3Aratana Therapeutics Announces Positive Top-Line Results from AT-001 Pivotal Field Study in Client-Owned Dogs with Osteoarthritis 2Aratana Therapeutics Announces Positive Top-Line Results from AT-001 Pivotal Field Study in Client-Owned Dogs with Osteoarthritis 3Aratana Therapeutics Announces Positive Top-Line Results from AT-001 Pivotal Field Study in Client-Owned Dogs with Osteoarthritis 4Aratana Therapeutics Announces Positive Top-Line Results from AT-001 Pivotal Field Study in Client-Owned Dogs with Osteoarthritis 5
Cached News: