 - Subjects for study arm-I must have up to 4 diopters D of absolute spherical hyperopia not spherical equivalent, with up to 2.5 D of refractive astigmatism NOT corneal astigmatism by manifest subjective refraction in both eyes. The spherical equivalent must be no more than 5.25 D. Subjects for study arm-II must have up to -7 diopters D of absolute spherical myopia not spherical equivalent, with up to -4.0 D of refractive astigmatism NOT corneal astigmatism by manifest subjective refraction in both eyes. The spherical equivalent must be no more than -9.00 D. 