An injector for injecting steam is disclosed. The sprayer includes a supply line through which the primary steam flows, a nozzle connected to the supply line, a heat insulating material coupled to the nozzle, and a spray case coupled with the heat insulating material. And a knob for controlling the supply of the voltage to be supplied. The nozzle unit includes a nozzle body portion having a secondary steam flow path through which the secondary steam can flow on both sides, a nozzle body portion for supplying the primary steam to the front surface and further vaporizing the secondary steam to spray the secondary steam to the front surface, A heating element coupled to the heat transfer lid plate at a surface opposite to the nozzle body, and a front surface of the nozzle body, wherein the injection speed and the injection amount of the secondary steam are combined, And a sealing member coupled to both sides and a front surface of the nozzle body so as to prevent water and water from flowing. Accordingly, when the steam injector for injecting steam is previously vaporized by the process but the steam is vaporized by steam, which can cause condensation due to a decrease in temperature during movement of the flow passage, or when steam is completely vaporized, the effective area of heat is maximized It is possible to completely vaporize the condensation or water by reheating, and it is possible to spray fine steam by spraying finer particles and to block the spraying of water droplets. When the steam device is used, It is possible to reduce the risk of burn incidents that may occur and generate various types of steam so that the user can easily spray the steam to conveniently and effectively perform the ophthalmic treatment.스팀을 분사하는 분사기가 개시된다. 분사기는 1차 스팀이 유동되는 공급라인, 공급라인과 연결되는 노즐부, 노즐부를 감싸서 결합되는 단열재, 단열재가 내벽에서 결합되는 분사 케이스를 포함하며, 분사 케이스는 공급라인의 1차 스팀이 노즐부로 공급될 수 있도록 제어하는 노브를 포함하여 구성된다. 노즐부는 양 측면에 2차 스팀이 유동될 수 있는 2차 스팀유로가 형성되고, 1차 스팀을 후면에서 공급받아 추가적으로 기화하여 전면으로 2차 스팀을 전면으로 분