RecruitingDrug trialA Study to Investigate the Safety of DSP-3077 After a Unilateral Eye Injection in Male and Female Participants 18 Years of Age or Older With Retinitis PigmentosaThe Goal of this study is to evaluate the safety, tolerability, and clinical responses following single dose of DSP-3077. Study enrolls both male and female patients in 3 cohorts with each cohort defined by visual acuity (VA) criteria and dose level of DSP-3077. Each cohort will include 4 participants.