Difference between revisions of Plus lenses
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'''Plus lenses''' are [[spherical]] lenses that correct for [[hyperopia]] known as far-sightedness, and/or [[presbyopia]]. Their diopters values are positive (e.g. +1 SPH). They are often available over-the-counter, without a [[prescription]]. Cheap drug store reading glasses are not customized to your [[PD]] measurement, and may be of inferior lens quality. | '''Plus lenses''' are [[spherical]] lenses that correct for [[hyperopia]] known as far-sightedness, and/or [[presbyopia]]. Their diopters values are positive (e.g. +1 SPH). They are often available over-the-counter, without a [[prescription]]. Cheap drug store reading glasses are not customized to your [[PD]] measurement, and may be of inferior lens quality. | ||
The Reduced Lens method uses plus lenses over contacts to cut the distance [[correction]] strength and serve as [[differential]] correction. | |||
Plus lenses are sometimes used for myopia prevention in kids, however remember to always know what you are doing before implementing focal plane changes, especially in children. | Plus lenses are sometimes used for myopia prevention in kids, however remember to always know what you are doing before implementing focal plane changes, especially in children. | ||
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Plus lenses may be useful as differentials to tone down the power of contacts, but should be customized to your PD and your [[distance to blur]], so it may be best to [[where to buy lenses|order them]] custom just like any other [[lens]]. | Plus lenses may be useful as differentials to tone down the power of contacts, but should be customized to your PD and your [[distance to blur]], so it may be best to [[where to buy lenses|order them]] custom just like any other [[lens]]. | ||
Reduced Lens finds that this usage of plus lenses is generally safe. | |||
==Prevention== | ==Prevention== | ||