Abstract
We discuss the relationship between normal tension glaucoma (NTG) and high myopia from a viewpoint of the softness of ocular tissue, based on our hypothesis that the geometrical shapes of eyes sufferd by these diseases are compliant and easily expand compared with those of normal. We define a new method to classify the shape of eyes by using geometrical parameters. In addition, we discuss the stress of cornea pressed outerward by internal ocular pressure. We show an interesting tendency where patients sufferd by these diseases have eyes with stronger ellipsoidal shape with statistic significance.