Scientists have discovered strands of genetic code linked to short sight,the most common eye disorder in the world. The findings shed light on what goes awry to make distant objects look blurred, and raises the prospect of developing drugs to prevent the condition. Understanding the biological glitches Scientists have discovered strands of genetic code linked to short sight, the most common eye disorder in the world. The findings shed light on what goes awry to make distant objects look blurred, and raises the prospect of developing drugs to prevent the condition. Understanding the biological glitches