Pig cornea transplant returns man his sight

Updated 2017-08-18 16:32:18 Ecns.cn
Surgeons have an ophthalmic operation on Zhang Hua.

Surgeons have an ophthalmic operation on Zhang Hua.

(ECNS) -- A 27-year-old man is able to see again with his right eye thanks to a successful pig cornea transplant at Third Xiangya Hospital in Central China's Hunan Province, Beijing Youth Daily reported.

His sight recovered to 0.3 after the operation, according to his doctor, surnamed Cao. The man had necrotic stromal keratitis and could see almost nothing.

Treatment required a new cornea, but the number of donated human corneas is far fewer than demand.

The transplant doesn't involve placing a pig's cornea directly on the human eye, oculist Cao explained, but uses the animal's three-dimensional structure to help form new corneal tissues. The procedure also requires special technological treatment.

The cornea of a pig is the most similar among animals to humans in some parameters, which makes it the best choice as a temporary replacement, said Tang Renhong, director of the cornea transplant center at the hospital.

Tang added it was not the first time the center conducted such surgery. Pig corneas do not need a vascular supply, so the success rate can reach 90 percent, but how long a patient can maintain eyesight depends on whether the transplant is rejected by the body or not, he said.

The procedure was researched and developed by a company in South China's Shenzhen, Guangdong Province, and began to be applied in clinic in 2016, Tang explained, adding that some hospitals in Beijing and Wuhan in Hubei Province started to conduct such surgeries last year. To date, there are less than 10 successful cases on record.

Also in the News

Nicole Kidman Recalls Oscar Glory: Loneliest Time
Showbiz2016/06/16 13:58February 24 2019 00:34:42

Nicole Kidman Recalls Oscar Glory: Loneliest Time

Attending Shanghai International Film Festival, Nicole Kidman talks about her role in "Grace of Monaco".

Labor Day Travel Peak Starts
Also in the News2014/05/01 12:16February 24 2019 00:34:42

Labor Day Travel Peak Starts

Johnny Depp Delivers a Speech 'Evolve the Future' in 'Transcendence'
Also in the News2014/04/18 13:18February 24 2019 00:34:42

Johnny Depp Delivers a Speech 'Evolve the Future' in 'Transcendence'

Hollywood star Johnny Depp's speech in the upcoming new film "Transcendence" has been disclosed on Friday, April 11th.

China World Business Sports Showbiz Audio
C4 My Chinese Life The Sound Stage China Revealed Showbiz Video Travel Video
China World Fun Travel Entertainment Sports
Beijing Shanghai Guangzhou
Live Music Opera & Classical Movies Traditional Shows Exhibitions
Learn Chinese:
Chinese Studio Living Chinese Everyday Chinese Just For Fun Chinese Culture Buzzwords