Also known as yogic gazing this yoga technique is one of the most effective and commonly used techniques to improve eyesight and keep the eyes healthy. Apart from that this kriya (yoga practice) helps improve visual acuity and is very useful for those suffering from early stages of cataract. In addition this kriya is very useful in beating a headache caused due to eye strain. While it does have physical benefits this kriya has a positive effect on your mind too. It not only helps calm your mind beat stress and tone your nervous system but it also improves concentration.