Iridex Corp — Additional Proxy Materials (DEFA14A)

Online Go to www.envisionreports.com/IRIX or scan the QR code — login details are located in the shaded bar below. Votes submitted electronically must be received by June 11, 2026 at 11:59 p.m., Eastern Time. Stockholder Meeting Notice Important Notice Regarding the Availability of Proxy Materials for the IRIDEX Annual Stockholders’ Meeting to be Held on June 12, 2026 Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication is not a form for voting and presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The Notice of Annual Meeting of Stockholders and Proxy Statement, Form 10-K to stockholders and form of proxy are available at: www.envisionreports.com/IRIX Easy Online Access — View your proxy materials and vote. Step 1: Go to www.envisionreports.com/IRIX. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. Step 4: Make your selections as instructed on each screen for your delivery preferences. Step 5: Vote your shares. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before June 2, 2026 to facilitate timely delivery. 2 N O T 04A38C

Stockholder Meeting Notice IRIDEX Corporation’s Annual Meeting of Stockholders will be held on June 12, 2026 at 1212 Terra Bella Avenue, Mountain View, California 94043, at 8:00 a.m., Pacific Time. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board of Directors recommends a vote FOR all nominees, FOR Proposal 2 and FOR Proposal 3: 1. Election of Director Nominees: Nick Chen, Beverly A. Huss, Patrick Mercer, William Moore, and Scott Shuda. 2. To ratify the appointment of BPM LLP as the Company’s independent registered public accounting firm for fiscal year 2026 ending January 2, 2027. 3. To conduct an advisory vote to approve the compensation of the Company’s named executive officers. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must go online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you. Here’s how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below. If you request an email copy, you will receive an email with a link to the current meeting materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials. — Internet – Go to www.envisionreports.com/IRIX. Click Cast Your Vote or Request Materials. — Phone – Call us free of charge at 1-866-641-4276. — Email – Send an email to investorvote@computershare.com with “Proxy Materials IRIDEX Corporation” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials. To facilitate timely delivery, all requests for a paper copy of proxy materials must be received by June 2, 2026.