Name	Info	Provider	Link
Refractive Errors	free resource	MedlinePlus Health Information	https://medlineplus.gov/refractiveerrors.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29537105.ui
	free resource	Wiley	https://onlinelibrary.wiley.com/doi/10.1111/cxo.12674
	free resource	scite Smart Citations	https://scite.ai/reports/29537105