Charles Bonnet syndrome, glaucoma and moderate visual acuity.

There is growing interest in the Charles Bonnet Syndrome (CBS). Recent publications report a possible link to brimonidine as a triggering factor1 and donepezil’s usefulness in treating this condition.2 Conventionally, CBS has been linked to aging and low visual acuity. However, it is not always associated with low visual acuity. This is a report on a case of a 71-year-old female patient, followed-up for chronic glaucoma, with visual acuity (VA) of amaurosis in OD due to an accident in childhood and 0.5 in OS. Papillary cavitation was 0.6. After performing a trabeculectomy, visual acuity is normalized and good blood pressure control. However, progression in the visual field did not stop. There an increased in superior nasal scotoma (Fig. 1). Coinciding with the visual field defect, the patient reported hallucinations perceived as a “brick wall on the horizon” and visions of “young children sitting on a couch,” and being fully