Pattern of glaucomatou viual field progreion identified by three progreion criteria

Purpoe To determine typical pattern of repeatable glaucomatou viual field progreion. Deign Retropective analyi of data obtained from two propective tudie. Method Included were 72 eye of 72 patient teted up to ix time over 2 year, and 40 eye of 40 patient followed annually for up to 12 year. Each patient had two abnormal baeline viual field, abnormal optic nerve, and erial field. Progreion wa identified uing three method: by glaucoma change probability uing total deviation (GCP-TD) and pattern deviation (GCP-PD) plot and by a clinical criteria. Progreion wa categorized a deepening or expanion of an exiting cotoma, or a new cotoma. Reult The percentage of eye repeatably progreed ranged from 17% to 27%. The mot common pattern of progreion wa a deepening of an exiting cotoma in the annual group, followed by expanion. With two follow-up required, percentage for deepening only were 20% (clinical claifier). A combination of expanion and deepening wa mot common for the GCP criteria: 15% (GCP-TD claifier), and 10% (GCP-PD claifier) for the annual group. For the emiannual group, deepening wa mot common with the clinical criteria (11% of eye), and deepening with expanion wa mot common by GCP criteria (14%, GCP-TD and GCP-PD). No eye howed repeatable new cotoma. Concluion Glaucomatou viual field progre in the area of the viual field where baeline teting howed an exiting cotoma. Follow-up teting might be improved by concentrating on already defective location and uing parer tet pattern or creening algorithm in normal area of the viual field.