Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Wavefront LASIK demonstrated superior to conventional LASIK

03.05.2004


Navy researcher reports on study



An independent researcher reporting at the annual meeting of the American Society of Cataract and Refractive Surgery (ASCRS) finds that "Custom" or Wavefront-guided LASIK produces superior vision quality compared to traditional LASIK eye surgery.

"While conventional LASIK is good, we’re finding that wavefront guided LASIK yields sharper and higher quality vision, and higher patient satisfaction compared to conventional LASIK. The improvement will likely be most apparent when driving at night," said US Navy Captain Steve Schallhorn, MD, the Director of Cornea and Refractive Surgery at the Navy Medical Center, San Diego.


We are finding that custom LASIK, without the use of glasses, is giving many patients the ability to see as well or better than they could see with glasses before surgery," he said. Schallhorn is part of a Navy program providing LASIK to Navy and Marine Corps personnel. "Refractive [LASIK] surgery plays a vital role in the military," he said. "By reducing dependence on glasses and contact lenses in active duty personnel, it enhances combat readiness and improves performance. It also expands the applicant pool to talented young men and women for a variety of Navy programs."

"Most significant," said Schallhorn, "is the improved quality of vision with the wavefront-guided procedure, fewer problems with halos and glare, better night vision, and higher patient satisfaction based on a detailed patient questionnaire."

Schallhorn’s early findings compared the results the Navy Medical Center obtained in patients having conventional LASIK versus custom LASIK. With conventional LASIK 88 percent of 908 patients achieved 20/20 or better as tested six months after the procedure. By comparison 97 percent of 34 patients using the wavefront-guided LASIK achieved 20/20 or better. Similarly, 85 percent of patients of wavefront-guided LASIK had 20/16 vision versus 69 percent of conventional LASIK patients six months following their procedures. Schallhorn also noted that 30 percent of conventional LASIK patients reported an increase in night driving halo symptoms compared to no patients in the wavefront guided LASIK group. After three months the majority of night halo problems abated for the conventional LASIK group.

Conventional LASIK eye surgery has been around since 1995, but wavefront-guided LASIK has been widely available for only about a year and a half. Doctors and companies are promoting it as being better than regular LASIK, but it is more expensive. Patients and some physicians have questioned whether or not it is worth the extra cost.

LASIK uses a laser to reshape the front part of a patient’s eye to correct visual errors such as nearsightedness or farsightedness. Conventional LASIK guides the laser by using treatment formulas based on much of the same information gathered when a patient has examinations for eyeglasses or contact lenses.

Wavefront-guided LASIK analyses light that is reflected from the back of the patient’s eye, to see how the light is distorted by visual errors in the eye itself. Special equipment then makes a custom treatment plan for that eye and guides the laser in applying the treatment. It is that customization that produces the superior results, Schallhorn said.

"Not everyone is a candidate for LASIK, complications are a real possibility, and some patients may still need glasses," Schallhorn cautioned adding, "the most satisfied patients are those who are well informed and have realistic expectations for what their results are likely to be."

John Ciccone | EurekAlert!
Further information:
http://www.eyesurgeryeducation.com
http://www.ascrs.org/

More articles from Health and Medicine:

nachricht Millions through license revenues
27.04.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht New High-Performance Center Translational Medical Engineering
26.04.2017 | Fraunhofer ITEM

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>