Ophthalmosurgical control module device, having: - a first convolution function device, which is configured to receive, at its input, a first measurement signal of a first measuring device detected on an irrigation fluid line and, at its output, to output a quantity, convolved by means of a first convolution function, of a time derivative of the first measurement signal, wherein the first convolution function has a first time duration, - a first threshold value device, with which a first threshold value for the time derivative of the first measurement signal can be established, - a first comparison device, which is configured to receive the quantity, output by the first convolution function device, of the time derivative of the first measurement signal and to receive the first threshold value and, after expiration of a predetermined first time point, to compare the output quantity of the time derivative of the first measurement signal and the first threshold value with each other and output a first comparison result, characterized in that the ophthalmosurgical control module device further has: - a second convolution function device, which is configured to receive, at its input, the first measurement signal detected on the irrigation fluid line and, at its output, to output a quantity, convolved by means of a second convolution function, of a time derivative of the first measurement signal, wherein the second convolution function has a second time duration, which is shorter than the first time duration, - a second threshold value device, with which a second threshold value for the time derivative of the first measurement signal can be established, - a second comparison device, which is configured to receive the quantity, output by the second convolution function device, of the time derivative of the first measurement signal and to receive the second threshold value and, after expiration of a predetermined second time point, to compare the output quantity of the time derivative of the first measurement signal and the second threshold value with each other and output a second comparison result, - a first evaluation device, which is configured to receive and evaluate the first comparison result and the second comparison result and output a first evaluation signal, - an activation device, which is configured to receive the first evaluation signal and, in accordance with the first evaluation signal, to make available a control signal for controlling a parameter of an ophthalmosurgical appliance. - a first convolution function device, which is configured to receive, at its input, a first measurement signal of a first measuring device detected on an irrigation fluid line and, at its output, to output a quantity, convolved by means of a first convolution function, of a time derivative of the first measurement signal, wherein the first convolution function has a first time duration, - a first threshold value device, with which a first threshold value for the time derivative of the first measurement signal can be established, - a first comparison device, which is configured to receive the quantity, output by the first convolution function device, of the time derivative of the first measurement signal and to receive the first threshold value and, after expiration of a predetermined first time point, to compare the output quantity of the time derivative of the first measurement signal and the first threshold value with each other and output a first comparison result, - a second convolution function device, which is configured to receive, at its input, the first measurement signal detected on the irrigation fluid line and, at its output, to output a quantity, convolved by means of a second convolution function, of a time derivative of the first measurement signal, wherein the second convolution function has a second time duration, which is shorter than the first time duration, - a second threshold value device, with which a second threshold value for the time derivative of the first measurement signal can be established, - a second comparison device, which is configured to receive the quantity, output by the second convolution function device, of the time derivative of the first measurement signal and to receive the second threshold value and, after expiration of a predetermined second time point, to compare the output quantity of the time derivative of the first measurement signal and the second threshold value with each other and output a second comparison result, - a first evaluation device, which is configured to receive and evaluate the first comparison result and the second comparison result and output a first evaluation signal, - an activation device, which is configured to receive the first evaluation signal and, in accordance with the first evaluation signal, to make available a control signal for controlling a parameter of an ophthalmosurgical appliance.