“…In addition, according to the concept of stress-relaxation and the fact that G ∞ of L65, L60, and R decreased in subsequent turn ( Figure 9 ), we knew that, during a long time, the transient stresses in the strips of the ablated corneas were larger than those in corneal strips without surgery. On the other hand, the formula in [ 32 ], σ c + 2 σ t rt / a 2 = ( r / a ) 2 p , gives the relationship of real IOP and its measurement value. In the formula, σ c is the compressive contact stress, that is, the IOP measurement value, and a , r , t , p , and σ t are the radius of the flattened area on the cornea by σ c , corneal radius, corneal thickness, real IOP, and tensile stress, respectively.…”