DY001: Safety and Effectiveness of DYME as an Agent for Selective Staining of the Anterior Capsule During Cataract Surgery

Inclusion Criteria: * Have a cataract sufficiently opaque/mature/brunescent that, in the surgeon's assessment,a dye could facilitate surgery; * Be aged at least 18 years old at the time of enrollment; * Be able to tolerate a surgical procedure for up to 3 hours; * Be in a medical condition suitable for cataract surgery; * Able and willing to participate in study examinations and visit schedule; and * Understand and freely consent to participate in the study. Exclusion Criteria: * In either eye, ocular infection or inflammation within the past 3 months; * Known allergy to BBG 250; * Uncontrolled intercurrent diseases including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia; * Active treatment for cancer or systemic infection within the past month; * Active treatment with systemic corticosteroids within the past month; * Previous participation in this Study for the contralateral eye; * Participation in another clinical trial involving an investigational therapeutic during the past 30 days or 5.5 half-lives (if applicable), whichever is longer; * Unwillingness to participate in the study or inability to give informed consent; or * Any medical condition that in the opinion of the Investigator may compromise the research subject's safety or ability to participate in the study.