United States securities and exchange commission logo May 17, 2023 Charles Deignan Chief Financial Officer Clearside Biomedical, Inc. 900 North Point Parkway, Suite 200 Alpharetta, GA 30005 Re: Clearside Biomedical, Inc. Registration Statement on Form S-3 Filed May 12, 2023 File No. 333-271902 Dear Charles Deignan: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Lauren Hamill at 303-844-1008 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Asheley Walker