v3.26.1
Cover - USD ($)
12 Months Ended
Dec. 31, 2025
Apr. 15, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
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 Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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 Public Float     $ 15,506,590
Entity Common Stock, Shares Outstanding   18,754,739  
Documents Incorporated by Reference [Text Block] None    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of RetinalGenix Technologies Inc. and Subsidiary (the “Company”) as of December 31, 2025 and 2024, and the related consolidated statements of operations, stockholders’ deficit, and cash flows for each of the years in the two year period ended December 31, 2025, and the related notes to the consolidated financial statements (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations, and its cash flows for each of the years in the two year period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name Liebman Hymowitz, LLP    
Auditor Location Garden City, New York    
Auditor Firm ID 473