Following blocks are used retrobulbar, peribulbar, subtenon\'s, topical and intracameral. Retrobulbar anesthesia gives very good anesthesia and akinesia in very small volume of anesthetic solution. Peribulbar anesthesia is most commonly used now days because of less complication rate. Subtenon\'s block is not preferred because of complicated technique and subconjunctival hemorrhage, while subconjunctival block is not used because of poor anesthesia. Now-a-days surgery can be done even without ocular akinesia, i.e. under topical anesthesia. It is more favorable to phaco surgeons because of excellent corneal anesthesia. Facial block is maximally used as adjunct when retrobulbar block has been used. Oculocardiac, oculorespiratory and coulometric reflex should be considered in every patient who shows deranged vital parameters after block.