Your eye doctor may also change the amount of remedial power between eyeglasses and contact lenses depending on the distance your lens will be from your eye. Photochromic lenses: Generally known as light-adaptive lenses and variable tint lenses, this will make the lenses darken while exposed to natural light.ĭon’t Confuse Contact Lens Prescription with Eyeglasses PrescriptionĪlthough the eyeglass prescription has all the details important for you to purchase eyeglasses, it does not have details required for buying contact lenses. In many cases, patients will need a different prescription for each eye, which is why there are separate values and parameters for OD and OS. All the values listed alongside OS pertain to your left eye. OS This stands for Oculus Sinister, which is Latin for left eye. Progressive lenses: These types of lenses are multifocal lenses with zero lines.Īnti-reflective coating: Also known as anti-glare coating, this particular coating cuts down glare, which means that more light can pass through the lenses. All the values listed alongside OD pertain to your right eye. These are generally recommended and may have extra charges: When reviewing the eyeglass prescription, you might see particular lens suggestions that the doctor has incorporated.

Which is right and left od and os