Featured Research

from universities, journals, and other organizations

High-resolution imaging expands vision research of live birds of prey

Date:
July 23, 2010
Source:
Association for Research in Vision and Ophthalmology
Summary:
Bird observatories all over the world may benefit from a newly designed high-resolution imaging system used to study the retinal structure of live birds of prey. Researchers now reveal unprecedented 3-D information about the retina of four species of raptors -- two hawks and two owls -- using the noninvasive, powerful imaging tool.

Owl's eye. Bird observatories all over the world may benefit from a newly designed high-resolution imaging system used to study the retinal structure of live birds of prey.
Credit: iStockphoto/Luca Manieri

Bird observatories all over the world may benefit from a newly designed high-resolution imaging system used to study the retinal structure of live birds of prey. In a recently published Investigative Ophthalmology & Visual Science article, researchers reveal unprecedented three-dimensional information about the retina of four species of raptors -- two hawks and two owls -- using the non-invasive, powerful imaging tool.

Through a series of experiments conducted at Bascom Palmer Eye Institute at the University of Miami, the research team used the new spectral-domain optical coherence tomography (SD-OCT) system to test its potential for vision research in birds of prey. The resulting images show detailed retinal anatomy that is not widely known, such as the retina layers and the structure of the deep and shallow foveae, the tiny pit located in the light-sensitive retina that provides the clearest vision of all. Traumatic injury to one bird's retina was also successfully imaged.

Although OCT has been used to image retinas in animals, the authors report that this the first time high resolution imaging has been used for living, awake birds, which provides an abundance of images with microscopic detail without harming the birds.

"Previous anatomical studies of raptor foveae required examination of the retina with a microscope, limiting the number of birds that could be studied," said author Robert W. Knighton, PhD, retired research professor at Bascom Palmer Eye Institute.

Lead researchers Marco Ruggeri and Shuliang Jiao and their colleagues suggest that the results of this research point the way for other scientists to study the eye structure and vision of large birds, including those that compare retinal anatomy differences between birds of prey that hunt during the day and those that hunt at night.

"One can imagine that obtaining data with an SD-OCT scanner could become a routine procedure at the many bird observatories in the world," adds Knighton, who now lives near Hawk Ridge Bird Observatory in Duluth, Minnesota.


Story Source:

The above story is based on materials provided by Association for Research in Vision and Ophthalmology. Note: Materials may be edited for content and length.


Cite This Page:

Association for Research in Vision and Ophthalmology. "High-resolution imaging expands vision research of live birds of prey." ScienceDaily. ScienceDaily, 23 July 2010. <www.sciencedaily.com/releases/2010/07/100721133229.htm>.
Association for Research in Vision and Ophthalmology. (2010, July 23). High-resolution imaging expands vision research of live birds of prey. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2010/07/100721133229.htm
Association for Research in Vision and Ophthalmology. "High-resolution imaging expands vision research of live birds of prey." ScienceDaily. www.sciencedaily.com/releases/2010/07/100721133229.htm (accessed October 2, 2014).

Share This



More Plants & Animals News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) — Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
Powered by NewsLook.com
Cultural Learning In Wild Chimps Observed For The First Time

Cultural Learning In Wild Chimps Observed For The First Time

Newsy (Oct. 1, 2014) — Cultural transmission — the passing of knowledge from one animal to another — has been caught on camera with chimps teaching other chimps. Video provided by Newsy
Powered by NewsLook.com
Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Earth Has Lost Half Its Vertebrate Wildlife Since 1970: WWF

Newsy (Sep. 30, 2014) — A new study published by the World Wide Fund for Nature found that more than half of the world's wildlife population has declined since 1970. Video provided by Newsy
Powered by NewsLook.com
Annual Dog Surfing Competition Draws California Crowds

Annual Dog Surfing Competition Draws California Crowds

AFP (Sep. 30, 2014) — The best canine surfers gathered for Huntington Beach's annual dog surfing competition, "Surf City, Surf Dog." Duration: 01:15 Video provided by AFP
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

 

Plants & Animals

Earth & Climate

Fossils & Ruins

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