Editing Refractive error (section)

=== Glasses ===
These are the most effective ways of correcting the refractive error. However, the availability and affordability of eyeglasses can present a difficulty for people in many low income settings of the world. Glasses also pose a challenge to children to whom they are prescribed to, due to children's tendency to not wear them as consistently as recommended.<ref>{{Cite journal|last1=Wedner|first1=S.|last2=Masanja|first2=H.|last3=Bowman|first3=R.|last4=Todd|first4=J.|last5=Bowman|first5=R.|last6=Gilbert|first6=C.|date=2008-01-01|title=Two strategies for correcting refractive errors in school students in Tanzania: randomised comparison, with implications for screening programmes|url=https://bjo.bmj.com/content/92/1/19|journal=British Journal of Ophthalmology|language=en|volume=92|issue=1|pages=19–24|doi=10.1136/bjo.2007.119198|issn=0007-1161|pmid=18156372|s2cid=2157969|url-access=subscription}}</ref>

As mentioned earlier refractive errors are because of the improper focusing of the light in the retina. Eyeglasses work as an added lens of the eye serving to bend the light to bring it to focus on the retina. Depending on the eyeglasses, they serve many functions.<ref>{{Cite web |title=Pediatric Ophthalmology, Optometry and Orthoptics |url=https://asianeyeinstitute.com/custom_services/pediatric-ophthalmology-orthoptics-strabismus/ |access-date=2022-08-03 |website=Asian Eye Institute}}</ref>

; Reading glasses: These are general over-the-counter glasses which can be worn for easier reading, especially for defective vision due to aging called presbyopia.
; Single vision prescription lenses: They can correct only one form of defective vision, either far-sightedness or near-sightedness.
; Multifocal lenses: The multifocal lenses can correct defective vision in multiple focus, for example: near-vision as well as far-vision. This are particularly beneficial for presbyobia.<ref>{{Cite web|title=Eyeglasses for Refractive Errors {{!}} National Eye Institute|url=https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/refractive-errors/eyeglasses-refractive-errors|access-date=2021-06-29|website=www.nei.nih.gov}}</ref>