Featured Research

from universities, journals, and other organizations

LASIK For Older Adults - Benefits And Problems

Date:
April 19, 2007
Source:
University of Illinois at Chicago
Summary:
Medical researchers report on the safety, efficacy and predictability of laser eye surgery -- laser in situ keratomileusis or LASIK -- in patients 40-69 years old.

A new University of Illinois at Chicago study appearing in the online edition of the journal Ophthalmology reports on the safety, efficacy and predictability of laser eye surgery (laser in situ keratomileusis or LASIK) in patients 40-69 years old.

Related Articles


"We are seeing an increasing demand for LASIK surgery for older adults, who present special challenges," said study co-author Dr. Dimitri Azar, Field chair of ophthalmologic research at UIC.

In LASIK surgery, adjustments in correction are routinely made to compensate for the cornea's strong healing responses in younger patients, Azar said. Increased age has been previously associated with poorer final clarity of vision, as measured on an eye chart (visual acuity).

"We were able to show that fine adjustments in the correction to the cornea in our older patients that compensate for differences in age-related healing resulted in reliable predictability of correction," said Azar, who is also professor and head of the UIC department of ophthalmology and visual sciences.

The researchers examined the case histories of 710 consecutive laser eye surgeries on 424 patients between 40-69 years old. The LASIK surgeries were performed to correct myopia (nearsightedness), hyperopia (farsightedness) and astigmatism. All surgeries were performed by Azar between January 1999 and September 2005.

The cases were divided into three groups based on age: group one, 40-49 years old (359 eyes); group two, 50-59 years old (293 eyes); and group three, 60-63 years old (58 eyes).

Outcomes of the laser surgery corrections were analyzed for near-sightedness with or without astigmatism (511 eyes) and far-sightedness with or without astigmatism (199 eyes). Patients' outcomes included a follow-up of at least six months and, where possible, 12 months. The study found no difference in safety between the groups.

At the final follow-up of the nearsighted-corrected patients, 86 percent of eyes in group one, 85 percent of group two, and 100 percent of group three had 20/30 or better visual acuity without glasses. In all groups, there was 20/40 or better visual acuity for 91 to 100 percent of patients.

For farsighted patients, 80 to 84 percent of all groups had 20/30 or better visual acuity at final follow-up, with 91 to 97 percent of all groups achieving 20/40 or better uncorrected vision. There was no statistical significant difference in final visual acuity between the different age groups.

Another challenge for older patients is difficulty with near vision after LASIK due to the loss of the ability to accommodate (presbyopia), Azar said. "As we age, we lose some elasticity of the lens of the eyes, making it impossible to maintain a clear image as objects are moved closer," he said.

Many patients in the study opted for monovision, a strategy that compensates for presbyopia by correcting one eye for distance and the other eye for near vision.

"Patients who understand that monovision is a compromise that does not restore accommodation, but rather compensates for its loss, are most likely to adapt well to monovision," Azar said.

"Although LASIK presents different challenges in the presbyopic age group, our study showed that for this age group, 40-69 years old, LASIK correction for near-sightedness and far-sightedness has reasonable safety, efficacy and predictability," he concluded.

Ramon Ghanem and Jose de la Cruz Napoli, UIC ophthalmology and visual sciences, and Faisal Tobaigy and Leonard Ang, Harvard Medical School, also contributed to the study.

The study was supported by the National Institutes of Health and Research to Prevent Blindness Lew R. Wasserman Merit Award (Dr. Azar).


Story Source:

The above story is based on materials provided by University of Illinois at Chicago. Note: Materials may be edited for content and length.


Cite This Page:

University of Illinois at Chicago. "LASIK For Older Adults - Benefits And Problems." ScienceDaily. ScienceDaily, 19 April 2007. <www.sciencedaily.com/releases/2007/04/070418115244.htm>.
University of Illinois at Chicago. (2007, April 19). LASIK For Older Adults - Benefits And Problems. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2007/04/070418115244.htm
University of Illinois at Chicago. "LASIK For Older Adults - Benefits And Problems." ScienceDaily. www.sciencedaily.com/releases/2007/04/070418115244.htm (accessed November 25, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, November 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Madagascar Working to Contain Plague Outbreak

Madagascar Working to Contain Plague Outbreak

AFP (Nov. 24, 2014) Madagascar said Monday it is trying to contain an outbreak of plague -- similar to the Black Death that swept Medieval Europe -- that has killed 40 people and is spreading to the capital Antananarivo. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Are Female Bosses More Likely To Be Depressed?

Are Female Bosses More Likely To Be Depressed?

Newsy (Nov. 24, 2014) A new study links greater authority with increased depressive symptoms among women in the workplace. Video provided by Newsy
Powered by NewsLook.com
Winter Can Cause Depression — Here's How To Combat It

Winter Can Cause Depression — Here's How To Combat It

Newsy (Nov. 23, 2014) Millions of American suffer from seasonal depression every year. It can lead to adverse health effects, but there are ways to ease symptoms. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins