Reference to original study: The Advanced Glaucoma Intervention Study (AGIS): 4. Comparison of treatment outcomes within race. Seven-year results. Ophthalmology. 1998;105(7):1146–64.

Fig. 1
figure 1

The Advanced Glaucoma Intervention Study (AGIS) evaluated 7-year visual outcomes after eyes with medically uncontrolled glaucoma were randomised to different treatment sequences. IOP intraocular pressure, POAG primary open angle glaucoma, VA visual acuity, VF visual field.