The author recruited 225 patients across two sites and divided them into three groups. Group 1 medical treatment only, Group 2 surgical treatment only, Group 3 mixed medical and surgical (patients still on drops after surgery). They then used a Brazilian validate version of the National Eye Institute Visual Functioning Questionnaire (NEI VFQ-25) to assess the patient’s health–related quality of life and also made comparisons among the groups for demographic and clinical characteristics. They found that patients under medical treatment only had better quality of life than those subjected to surgery but this was more evident in the early glaucoma. The advanced cases did not show a negative influence on quality of life scores. The different types of surgery also showed no difference.