Study participants who were enrolled and received treatment with low dose JNJ-81201887 in parent clinical studies (81201887MDG2001 [NCT05811351]; 81201887MDG1003) will enter this long-term extension (LTE) study. No study intervention will be administered as part of this study.

Study participants who were enrolled and received treatment with high dose JNJ-81201887 in parent clinical studies (81201887MDG2001 [NCT05811351]; 81201887MDG1003) will enter this LTE study. No study intervention will be administered as part of this study.

Participants randomized to the sham arm in parent study 81201887MDG2001 (NCT05811351) may have the option to receive JNJ-81201887 open-label treatment under a separate protocol after unmasking of that study; and will enter this LTE study. No intervention will be administered as part of this study.

No study intervention will be administered as part of this LTE study.

Number of participants with ocular and systemic TEAEs will be reported. An adverse event (AE) is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. TEAEs are defined as any adverse event occurring at or after the administration of study intervention.

Number of participants with abnormal findings in clinical laboratory Assessments (including hematology and clinical chemistry) will be reported.

Number of participants with abnormal findings in retinal imaging (Fundus Autofluorescence, Spectral Domain Optical Coherence Tomography, Color Fundus Photography) and eye examinations will be reported.