Myopia (short- or near-sightedness) affects many school-aged children and is fast becoming a major public health issue of our time. It is estimated that the current number of 2 billion people (2010) with the condition will grow to a staggering 2.6 billion by 2020 and 4.8 billion by 2050. The onset of myopia at an early age brings with it the likelihood of life-long eye care, there is a significantly increased risk of serious ocular health problems with high myopia, which can lead to vision loss and blindness. Wonder the risk of myopia for your child? Use this calculator to see the possible outcome.