Featured Research

from universities, journals, and other organizations

Mood, cognition and sleep patterns improve in Alzheimer's patients after cataract surgery, study finds

Date:
November 30, 2011
Source:
American Academy of Ophthalmology
Summary:
Researchers in France have found that patients with mild Alzheimer's disease whose vision improved after cataract surgery also showed improvement in cognitive ability, mood, sleep patterns and other behaviors.

Researchers at Tenon Hospital, Paris, France, found that patients with mild Alzheimer's disease whose vision improved after cataract surgery also showed improvement in cognitive ability, mood, sleep patterns and other behaviors. Lead researcher Brigitte Girard, MD, will discuss her team's results at the American Academy of Ophthalmology's 2011 Annual Meeting.

Related Articles


This is the first study to specifically assess whether cataract surgery could benefit Alzheimer's patients, although earlier research had shown that poor vision is related to impaired mood and thinking skills in older people and that cataract surgery could improve their quality of life. Thirty-eight patients, average age 85 and all exhibiting mild dementia due to Alzheimer's disease, completed Dr. Girard's study. All participants had debilitating cataract in at least one eye and were appropriately treated with standard cataract surgery and implantation of intraocular lenses, which replace the eyes' natural lenses in order to provide vision correction. After surgery, distance and near vision improved dramatically in all but one of the Alzheimer's patients.

A neuropsychologist assessed the Alzheimer's patients for mood and depression, behavior, ability to function independently, and cognitive abilities at one month before and three months after cataract surgery. Cognitive status, the ability to perceive, understand and respond appropriately to one's surroundings, improved in 25 percent of patients. Depression was relieved in many of them, and the level of improvement was similar to what commonly occurs after cataract surgery in elderly people who do not have dementia. No changes were found in patients' level of autonomy, that is, their ability to function independently.

Sleep patterns improved and night time behavior problems decreased in most study patients. Other studies have shown that when cataracts are removed, levels of the sleep-regulating hormone melatonin become normalized. Dr. Girard notes that this may have been a key factor in the Alzheimer's patients' improved sleep patterns.

"We wanted to learn whether significant vision improvement would result in positive mood and behavior changes, or might instead upset these patients' fragile coping strategies," said Dr. Girard. "In future studies we intend to learn what factors, specifically, led to the positive effects we found, so that we can boost the quality of life for Alzheimer's patients, their families and caregivers."


Story Source:

The above story is based on materials provided by American Academy of Ophthalmology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Ophthalmology. "Mood, cognition and sleep patterns improve in Alzheimer's patients after cataract surgery, study finds." ScienceDaily. ScienceDaily, 30 November 2011. <www.sciencedaily.com/releases/2011/10/111025091640.htm>.
American Academy of Ophthalmology. (2011, November 30). Mood, cognition and sleep patterns improve in Alzheimer's patients after cataract surgery, study finds. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2011/10/111025091640.htm
American Academy of Ophthalmology. "Mood, cognition and sleep patterns improve in Alzheimer's patients after cataract surgery, study finds." ScienceDaily. www.sciencedaily.com/releases/2011/10/111025091640.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Doctor in NYC Quarantined With Ebola

Doctor in NYC Quarantined With Ebola

AP (Oct. 24, 2014) An emergency room doctor who recently returned to the city after treating Ebola patients in West Africa has tested positive for the virus. He's quarantined in a hospital. (Oct. 24) Video provided by AP
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