The present invention relates to a multi-purpose ophthalmological apparatus, comprising first optical means, provided with one or more first mires, and sensing means for acquiring along a first optical path an image comprising said one or more first mires reflected by a patient's eye, characterised in that it comprises separating optical means for separating the first optical path from at least one second optical path, and in that it further comprises second optical means, provided with one or more second mires, located along the first optical path between the separating optical means and the sensing means, whereby said image further comprises said one or more second mires reflected by the patient's eye.