A method and device for assisting treatment of the cornea, the device including a memory (4), an interface (8) capable of receiving and supplying data, a processing unit (6) for calculating and supplying to the interface (8) an ophthalmological value for use in the treatment of the cornea, a scheduler (10) which configured, upon receipt of initial central keratometric index (KC) data and initial asphericity value (QI) data at the interface (8), to store those data in the memory (4), to call the processing unit (6) with the initial central keratometric index (KC) and initial asphericity value (QI) data as well as with target asphericity value (QV) data in order to calculate a peripheral keratometric index (KP), to store the corresponding data in the memory (4) and to supply them to the interface (8).Un dispositif d'aide au traitement
