An ophthalmological device (10) for the treatment of corneal diseases such as keratocanus and glaucoma, comprises a moulding head (12), a suction body (14) and a UV lamp (15). The moulding head (12) has a hollow cylindrical configuration and includes a rigid moulding lens (18) for shaping the cornea of an eye (11) of a patient. The lens is curved and defines a plurality of apertures therein. The suction body (14) has a hollow cylindrical configuration. The lamp (15) is fitted to the suction body. Moulding head (12) and suction body (14) together define a chamber (32) from which air is evacuated so as to induce a partial vacuum within the chamber (32) for attracting the cornea onto the lens (18). A photo-sensitizer is applied to the eye and while the cornea is held against the mould, it is irradiated with UV light by lamp (15) so as to cross-link collagen fibres in the cornea.