Cover - shares	3 Months Ended
	Mar. 31, 2023	May 01, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-36080
Entity Registrant Name	IVERIC bio, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-8185347
Entity Address, Address Line One	8 Sylvan Way
Entity Address, Postal Zip Code	07054
Entity Address, City or Town	Parsippany,
Entity Address, State or Province	NJ
City Area Code	609
Local Phone Number	474-6755
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	ISEE
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Smaller Reporting Company	false
Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		137,782,748
Entity Central Index Key	0001410939
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1