Fig. 21. Haptic support “steering wheel” type of PMMA IOL was tried to eliminate the noncontribution of the far distal haptic to centration. The result was that there was no distal haptic. Perfect equatorial contact was possible without zonular stress or ciliary body contact. (With permission from Tetz M, O'Morche D, Gwin T, et al: Posterior capsular opacification and intraocular lens decentration. Part II: Experimental findings on a prototype circular intraocular lens design. J Cataract Refract Surg 14:614, 1988.)