Special lenses help short-sighted children

Orthokeratology can be an effective treatment for myopia with special lenses reshaping the surface of the cornea at night to give clearer vision throughout the following day. 
Directed by Hu Jun. Shot by Zhou Shengjie, Hu Jun and Dai Qian. Edited by Hu Jun. Subtitles by Wang Xinzhou and Andy Boreham.

Orthokeratology can be an effective treatment for children with short sight.

People wear special contact lenses at night to temporarily reshape the surface of the cornea to improve sight throughout the day without contact lenses or glasses.

It also has the effect of slowing down the progress of myopia.

About 56.6 percent of children in Shanghai suffer from myopia, 3 percentage points higher than the national level, and the incidence is rising by 1 to 2 percentage points a year.

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