An irrigation / aspiration handpiece (I / A) (100, 1000) for use in a combined phacoemulsification procedure with both hands combined, comprising: an irrigation part (102, 1002) having a proximal limb (114) and a distal limb (118)； and an aspiration part (104, 1004) having a proximal limb (144) and a distal limb (146), characterized in that the irrigation part and the aspiration part are adapted to be separated, into which one of the irrigation part and the suction part comprises a body (141, 1008) defining a receptacle (148, 1015) that extends longitudinally in which at least one part (122, 1050), of the other, either of the irrigation part, or the suction part is received so that it can be released, whereby the I / A handpiece is selectively configurable between an assembled configuration in which the irrigation part (102, 1002) and the suction part (104, 1004) are coupled together in such a way that at least a part (122, 1050), either of the irrigation part or of the suction part is received inside the receptacle (148, 1015) of the other, either of the irrigation part or of the part d and aspiration and can be held by the user with one hand, and a separate configuration in which the irrigation part and the aspiration part are decoupled from each other and used separately for use in a surgical procedure to be performed with the two hands.Una pieza de mano de irrigación/aspiración (I/A) (100, 1000) para utilizar en un procedimiento de facoemulsifiación a realizar con las dos manos combinada, que comprende: una parte de irrigación (102, 1002) que tiene una extremidad proximal (114) y una extremidad distal (118)； y una parte de aspiración (104, 1004) que tiene una extremidad proximal (144) y una extremidad distal (146), caracterizada por que la parte de irrigación y la parte de aspiración están adaptadas para poderse separar, en la que una de la parte de irrigación y de la parte de aspiración comprende un cuerpo (141, 1008) que define un receptáculo (148, 1015) que s
