Refractive error may occur if the eye fails to precisely focus a light beam from an element onto the retinal surface. The resulting image perceived by the individual is blurred and correction of the refraction is required to see clearly. Refractive deficiency is often known as __ampersandsignldquo;Short or Near-sightedness__ampersandsignrdquo;, hypermetropia or hyperopia often called __ampersandsignldquo;Long or Far-sightedness__ampersandsignrdquo;, presbyopia and astigmatism. Vision is vital in the development of the children as it enables children to engage with their atmosphere. The eyesight of pre-school children is vitally important since their sensory system continues to be developing and that they are danger of developing Amblyopia or Anisometropia. Additionally, refraction Defects are risk factors for different Ocular diseases. Uncorrected refraction errors are a significant reason for visual disablement and can result in productivity loss. Refractive error has been identified among vision problems alongside cataract, trachoma, onchocerciasis and childhood blindness, the diagnosis and treatment of which will offer tremendous savings and socioeconomic growth. About 150 million individuals worldwide have a visual disability due to uncorrected Refractive Error, 8 million of who are practically blind. In the year 2010, The refractive error impacted 1.45 billion men or 27% of the world__ampersandsignrsquo;s population. By 2020, it is reported that only myopia will impact 2.5 billion individuals or one per cent of the population worldwide. Childhood Visual Impairment is amongst the common issues of school-age kids due to refractive error and the second most significant cause of treatable blindness.