computer and eye's cataract

Since we dont know the exact cause of eye's cataract,though the scientist has related that computer could play a mini role which could be a triggering factor so it's best that we avoid the usage of computer for a long period of time.As prevention is better than cure.UV radiation can increased the chance of cataract formation,UV radiation is a component of solar energy but it can also be given off by artificial sources such as machinery.But not to worry as the level of radiation from computer screen are below level that may only cause temporary damage such as cataracts,fatigue,dry eyes and eyestrain..