HOME >> MEDICINE >> NEWS
Squinting while staring at a computer monitor can cause painful dry eye

COLUMBUS , Ohio Squinting at a computer screen can cut in half the number of times someone blinks each minute. And that could lead to an irritating condition called dry eye, new research suggests.

The more that the participants in this study squinted their eyes, the less they blinked. And the less they blinked, the more their eyes ached or burned, and the more they reported sensations of dryness, irritation and tearing.

Just a slight amount of squinting reduced blink rates by half, from 15 blinks a minute to 7.5 blinks a minute.

"People tend to squint when they read a book or a computer display, and that squinting makes the blink rate go way down," said James Sheedy, the study's lead author and a professor of optometry at Ohio State University. "Blinking rewets the eyes. So if your job requires a lot of reading or other visually intense work, you may be blinking far less than normal, which may cause eye strain and dry eye."

Squinting serves two purposes: It improves eyesight by helping to more clearly define objects that are out of focus. It also cuts down on the brightness from sources of glare. It may be voluntary or involuntary a person working at a computer may not realize that he is squinting.

Dry eye is usually treatable with over-the-counter eye drops. It's rarely a debilitating condition, but it can be irritating and painful.

The results appear in a recent issue of the journal Optometry and Vision Science. Sheedy conducted the study with Ohio State colleagues Sowjanya Gowrisankaran, a graduate student, and John Hayes, a research scientist in optometry.

The researchers asked 10 college students to squint at different levels. All participants had 20/20 vision in both eyes. The researchers attached two tiny electrodes to the lower eyelids of each student. The electrodes were also attached to an electromyogram, a machine that records the electrical activity of muscles. In this case, the researchers
'"/>

Contact: James Sheedy
JSheedy@optometry.osu.edu
614-247-7632
Ohio State University
28-Nov-2005


Page: 1 2

Related medicine news :

1. Most first-time offenders for driving while intoxicated need help for more than just alcohol
2. Certain types of cancer becoming more common, while rates of others decreasing
3. Ireland leads Europe for anti-tobacco policies while Luxembourg comes last
4. Smoking while pregnant causes finger, toe deformities
5. Toddlers with sleep apnea suffer more respiratory problems while sleeping on their backs
6. Indians suffer poor health services while private sector expands for foreigners
7. HIV-positive patients have shorter survival periods while awaiting liver transplants
8. Breast cancer increases while experts disagree on causes - Debate in crisis say academics
9. Politicians bury their heads in the sand while global flu threat mounts
10. Device helps physically disabled turn on computer
11. U of M researchers assess effectiveness of computerized physician order entry system

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2021)... , ... March 29, 2021 , ... ... the 21st Century , A Virtual Workshop Presented by WCG FDAnews and Cerulean ... 4:30 pm EDT, https://wcg.swoogo.com/modern-sop-and-quality-systems , Are one’s SOPs written for the ...
(Date:3/30/2021)... ... March 29, 2021 , ... According to data released ... reproductive age (13-44) in need of publicly funded contraception live in counties impacted by ... Colorado’s 64 counties have lost some of their Title X resources. , The ...
(Date:3/30/2021)... ... March 29, 2021 , ... Health Literacy Innovations (HLI), a ... confusion due to low health literacy today announces a new partnership with the ... work with ACAP’s member Safety Net Health Plans, those that provide comprehensive health ...
(Date:3/30/2021)... ... ... Dr. Colin Campbell is proud to announce the 1 year anniversary in their new state ... internal medicine and is a primary care specialist who has been practicing for 23 years. ... keep South Jersey healthy one patient at a time. , “Over the past year, Dr. ...
(Date:3/30/2021)... ... March 30, 2021 , ... The COVID-19 ... and survivors; their families; and their caregivers. Crossroads4Hope is addressing the needs of ... emotional support system, MyGo2Support, which meets needs of people impacted by cancer, no ...
Breaking Medicine News(10 mins):
(Date:3/30/2021)... ... March 29, 2021 , ... The University of Texas Health Science Center ... San Antonio Multispecialty and Research Hospital, a destination center for research and treatment of ... In a nod to the COVID-19 pandemic, the ceremony was held virtually. , William ...
(Date:3/30/2021)... ... March 29, 2021 , ... Iora Health ... primary care, has partnered with Devoted Health , one of the fastest-growing ... across Maricopa County and provides seniors with the highest-quality care and experience possible, ...
(Date:3/30/2021)... CITY (PRWEB) , ... March 29, 2021 , ... ... has joined the Vaccine Credential Initiative (VCI), a group bringing together leading health ... record of vaccination status, based on open, interoperable standards. By joining the VCI ...
Breaking Medicine Technology:
Cached News: