Abstract: An intraocular implant device for correcting ocular anisotropy, and in particular astigmatism, the device having a haptic portion and an optic portion that is substantially circular in shape and suitable for correcting the anisotropy in a diametral direction. The optical portion and the haptic portion are constituted by two different parts. The haptic portion has a first end suitable for co-operating with the inside wall of the eye when the implant device is placed in the eye for the purpose of holding the optical portion in position, and a second end suitable for cooperating with the periphery of the optical portion to provide the optical portion with rotary guidance about its optical axis. The haptic portion also prevents the optical portion from moving in translation relative to the haptic portion, and further includes a braking feature for allowing the optical portion to rotate only under the effect of a torque being applied to the optical portion.