What is the highest eye prescription?
What is the highest eye prescription? SPH: Prescription spherical correction ranges between 0.00 and +/- 20.00. The farther away from 0 your prescription is, the stronger the lenses are made to correct vision problems.
Is 500 eye grade bad?
20/30 to 20/60 is considered mild vision loss, or near-normal vision. 20/70 to 20/160 is considered moderate visual impairment, or moderate low vision. 20/200 to 20/400 is considered severe visual impairment, or severe low vision. 20/500 to 20/1,000 is considered profound visual impairment, or profound low vision.
How bad is a 1.50 eye prescription?
This prescription is for the left eye, and -1.50 means that your nearsightedness is measured at 1 and 1/2 diopters. It's considered a mild amount of nearsightedness. SPH indicates the adjustment for spherical power, with a prismatic correction of 0.5 Base Up.
Is minus 7 legally blind?
What Eye Prescription is Considered Legally Blind? If your prescription is -2.5 or lower, this means that you are legally blind. Visual acuity of -2.5 is equivalent to 20/200 vision. Visual acuity of -3.0, for instance, means that you have 20/250 or 20/300 vision.