Table 1. The search strategy summary.

Items	Specification
Date of search	October 25th, 2022
Databases and other sources searched	PubMed
Search terms used	Nitric oxide, eye, ocular, and drug
Timeframe	November 1980–October 2022
Inclusion and exclusion criteria	Inclusion: English publications that discuss nitric oxide, eye, ocular and drug
	Exclusion: non-English publication; Not discussing nitric oxide, eye, ocular and drug
Selection process	The authors reviewed the papers involved and agreed to review them based on the relevance of the articles