The eye is an organ which transduces light, and can be consideredas a biomechanical structure. It is a pressurized,thick-walled shell with an internal and external musculature, aremarkably complex internal vascular system. In this review, we presentresearch results of biosolid mechanics related with eye, and a list ofunsolved problems. The research objects are sclera, corneoscleral envelope,cornea retina, lamina cribrosa, accommodation and presbyopia. We firstaddress studies on measuring mechanical properties of the scleraand the stress-strain behavior of the corneoscleral envelope. Thenwe examine the applications of these studies. An important applicationof scleral mechanics is the understanding of myopia in which the axiallength of the eye is too large to allow clear focusing of distant light rayson the retina. An obvious application of corneal biomechanics is to predictthe laser ablation profile that will optimize postoperative visual acuity inrefractive corneal procedures. The lamina cribrosa is one of the most interesting tissues in the eye with respect to biomechanics. It is a porous connectivetissue that spans the scleral canal, mechanically supporting the retinalganglion cells of the optic nerve as they pass through the scleral canal. Wediscuss the mechanical theory of glaucomatous optic neuropathy. The evidenceindicates that changes in the connective tissues around the ciliary musclemay inhibit its ability to freely contract. Thus, the pathophysiology ofpresbyopia may be multifactorial.