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Laser Eye Surgery Glossary
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N
N.S.A.I.D.
Abbreviation for non-steroidal anti-inflammatory drugs.
Near-sightedness
Or short-sightedness. See Myopia. Further reading
Negative power lens
The shape of the lens used in glasses or contact lenses for people suffering from short-sightedness. The lens is thinner in the middle than the outside. A negative lens, diverges (bends outwards) light to compensate for the over-bending by the eye's natural lens, inside the eye. A minus sign in front of your prescription indicates a negative lens if you are short-sighted.
Nomogram
A surgeon's adjustment to the laser's computer calculation to further refine his or her own results. Further reading
Non-dominant eye
The non-dominant eye is the eye which is left short-sighted when Monovision eye surgery is chosen. The dominant eye is the one most used for distance, i.e. the one used to focus a camera.
