Myopia

(mi-o' '-pe-ah). Near-sighted ne ; an optic defect, usually due to too great length of the antero-posterior diameter of the globe, whereby the focal image is formed in front of the retina. M., High, a degree of The Formation of the Image in a Myopic Eye, in front of the retina. myopia greater than 6.5 diopters. M., Low, one le than two diopters. M., Malignant, rapidly progre ing myopia. M., Progre ive, continuous increase of myopia, due to increasing elongation of the eyeball.