Hilton Head Macula & Retina's
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Medical Careers Run in the Family

Medical Careers Run in the Family

For Dr. Peter Liggett, treating patients is part of his DNA. His great-great-great grandfather’s medical saddle bags (pictured here) made house calls on horse back in the late 1800s can be found as part of the office decor at Hilton Head Macula & Retina’s north Hilton Head Island office.

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Hilton Head Macula & Retina Sponsors Camp Leo Golf Tournament

Hilton Head Macula & Retina Sponsors Camp Leo Golf Tournament

Dr. Peter Liggett and Hilton Head Macula & Retina is proud to support Camp Leo Golf Tournament this summer. Camp Leo is a summer camp for legally blind children.  All campers are legally blind and, thanks to Camp Leo, participate in activities that all kids love: swimming, games, kayaking, sports, movies and more.  Camp Leo provides blind children an opportunity to socialize and explore independence. For one week, kids get to have a sleep-away camp experience just like their peers.  From bunk beds to songs, Camp Leo offers the classic camp experience we all know and love.

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How Tattoo Ink and Gold Could (One Day) Help Restore Vision

How Tattoo Ink and Gold Could (One Day) Help Restore Vision

By Bahar Gholipour, Live Science Contributor

An artificial retina made of organic ink and gold may be able to restore vision someday, a new study suggests.

The new device is an extremely thin sheet of organic crystal pigments, which are widely used in printing ink, cosmetics and tattoos. When these pigments are arranged in a particular layered geometry, the crystals can absorb light and convert it to electric signals, just like the light-sensitive cells — called photoreceptors — in the eye’s retina and make vision possible, according to the study, published May 2 in the journal Advanced Materials.

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Nanowire arrays restore vision in blind mice

(SOURCE: www.nature.com)

Abstract

The restoration of light response with complex spatiotemporal features in retinal degenerative diseases towards retinal prosthesis has proven to be a considerable challenge over the past decades. Herein, inspired by the structure and function of photoreceptors in retinas, we develop artificial photoreceptors based on gold nanoparticle-decorated titania nanowire arrays, for restoration of visual responses in the blind mice with degenerated photoreceptors. Green, blue and near UV light responses in the retinal ganglion cells (RGCs) are restored with a spatial resolution better than 100 µm. ON responses in RGCs are blocked by glutamatergic antagonists, suggesting functional preservation of the remaining retinal circuits. Moreover, neurons in the primary visual cortex respond to light after subretinal implant of nanowire arrays. Improvement in pupillary light reflex suggests the behavioral recovery of light sensitivity. Our study will shed light on the development of a new generation of optoelectronic toolkits for subretinal prosthetic devices.

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Basketball, Baseball and Air/Paintball Guns Top the List of Leading Causes of Eye Injuries

Basketball, Baseball and Air/Paintball Guns Top the List of Leading Causes of Eye Injuries

Dr. Peter Liggett of Hilton Head Macula & Retina and the American Academy of Ophthalmology offer guidance on how to protect sight during Sports Eye Safety Month in April

More than 40 percent of eye injuries that occur every year are related to sports or recreational activities. A recent study found that about 30,000 people in the U.S. went to an emergency department with a sports-related eye injury, a substantially higher estimate than previously reported. Three sports accounted for almost half of all injuries: basketball, baseball and air/paintball guns.

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SEMINAR: Macular Degeneration Month

SEMINAR: Macular Degeneration Month

Age-related macular degeneration (AMD) is the leading cause of vision loss among people age 50 and older. It is a is a disorder of the macula, a small spot near the center of the retina and the part of the eye needed for sharp, central vision, which lets us see objects that are straight ahead. AMD by itself does not lead to complete blindness, with no ability to see. However, the loss of central vision in AMD can interfere with simple everyday activities, such as the ability to see faces, drive, read, write, or do close work, such as cooking or fixing things around the house.

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2017 Great American Eclipse

(From the American Society of Retina Specialists by Geoffrey G. Emerson, MD, PhD  and Robert W. Wong, MD)

Don’t Get Burned by the 2017 Great American Eclipse

On August 21, 2017, North America will witness a rare total solar eclipse as the moon passes between the sun and the Earth, blocking daylight for several minutes. The last eclipse of this magnitude was in 1918, and weather permitting, it promises to be an incredible event if viewed safely.

During the eclipse, the moon’s coverage of the sun will be partially visible from most of the United States. In order to see the moon cover the sun completely, you’ll have to be in the so-called “Path of Totality,” which is a 70-mile-wide strip extending diagonally across the country from Oregon to South Carolina (Figure 1), crossing the major cities of Jackson Hole, WY; St. Louis, MO; Nashville, TN; and Charleston, SC. The total eclipse is predicted to last about 2 minutes, and detailed predictions of start time per location are available from eclipse2017.nasa.gov.

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