v3.26.1
Cover - $ / shares
3 Months Ended
Mar. 31, 2026
May 20, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2026  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Entity File Number 333-258528  
Entity Registrant Name RETINALGENIX TECHNOLOGIES INC.  
Entity Central Index Key 0001836295  
Entity Tax Identification Number 82-3936890  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 409 Apollo Beach Blvd  
Entity Address, Address Line Two Suite 6  
Entity Address, City or Town Apollo Beach  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33572  
City Area Code (415)  
Local Phone Number 578-9583  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   18,843,628
Entity Listing, Par Value Per Share $ 0.0001