Consistency of OCT hood report visual field predictions with standardized automated perimetry in gluacoma patients and glaucoma suspects in Jordan

Aims/Purpose: To study the level of consistency between OCT Hood report visual field predictions and standardized automated perimetry in gluacoma patients and glaucoma suspects in Jordan.

Methods: This is a retrospective analysis of 289 patient images from the Middle East Eye Hospital in Amman, Jordan. Each patient's eye had undergone a single wide‐field OCT scan to generate the Hood report (Triton OCT, Topcon Inc.), in addition to either a 10‐2 or 24‐2 visual field test (Humphrey field analyzer 3, Zeiss Inc.). The leading observer (MBK) is a glaucoma specialist, while the 2^nd (HR) and 3^rd (RT) observers are retina specialists, the 2^nd very much familiar with the Hood report. First, each observer reviewed the Hood report and described the predicted scotoma in the designated eye using classical clinical terms e.g. superior arcuate, paracentral and diffuse. Then the observer examined the actual 24‐2 and/or 10‐2 visual fields and described the scotoma using the same clinical terminology. Regardless of the actual point by point matching, if a reasonable compatibility was determined, the observer labeled the case as a ‘good match’, and if not, ‘no match’.

Results: 174 cases were labeled as ‘good match’ between Hood report and the actual perimetry by the leading observer (60%). A significant interobserver agreement with a p‐value = 6.2356 E^‐22, kappa = 0.56 (moderate) was found between the leading and 2^nd observer (HR). When comparing only 10‐2 cases, interobserver agreement was substantial between the leading and 2^nd observer (p‐value = 5.628E^‐12, kappa = 0.699). Similar results were obtained for different stages of glaucoma (early, moderate and advanced), and also for cases labeled as neurological hemianopias. An agreement of a lesser degree was found with the 3^rd observer (RT) possibly due to previous unfamiliarity with the Hood report.

Conclusions: The single wide‐filed OCT scan Hood report is a practically accurate tool in the prediction of glaucoma and neurological scotomas, satisfactorily replacing the need for an actual perimetry more than 50% of time. Future modifications can improve it further.

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