Statpac 2 Glaucoma Change Probability

Rebecca K. Morgan, William J. Feuer, Douglas R. Anderson

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


We compared the traditional intuitive criterion (fixed at 5 dB) with the variable Statpac 2 criterion of the Humphrey Field Analyzer for identifying visual deterioration at individual points within a visual field. The separation of depressed from stable points in 123 follow-up fields of 17 patients, when all points within a field were considered, was reasonably equivalent between the two methods (κ=0.55±0.027 [±SE]). Centrally located points within the field demonstrated a stronger agreement (κ=0.68±0.028), because the fixed criterion more often labeled the edge points as having progressed than did the Statpac 2 algorithm. The glaucoma change probability printout is more simply obtained than the manual comparison required for intuitive interpretation with a fixed criterion, and it is potentially more accurate because of its reliance on a database that permits a variable criterion to be applied.

Original languageEnglish (US)
Pages (from-to)1690-1692
Number of pages3
JournalArchives of ophthalmology
Issue number12
StatePublished - Dec 1991

ASJC Scopus subject areas

  • Ophthalmology


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