Table 1.
Variable | PT group | MT group |
---|---|---|
Presenting visual field defects | Early | Advanced |
Duration of disease | Days/weeks | 1–17 years |
History of failed medical treatment | 20% of group destined to fail treatment | 100% of group |
History of prior laser surgery | No | Yes (25% of group) |
PT group has less than 8 weeks of medical treatment. MT group has 1 to 17 years of medical treatment.