FDT is efficient for monitoring functional damage in OAG patients

Article

Frequency doubling technology (FDT) is successful in monitoring functional damage in the standard automated perimetry (SAP)-normal hemifield in eyes with open-angle glaucoma (OAG).

Frequency doubling technology (FDT) is successful in monitoring functional damage in the standard automated perimetry (SAP)-normal hemifield in eyes with open-angle glaucoma (OAG), states a study in the Journal of Glaucoma.

Dr Suguru Nakagawa et al. Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Gifu, Japan, performed the investigation on 39 OAG patients with low to normal intraocular pressure (IOP).

The Humphrey Field Analyzer was used to measure FDT perimetry with the N-30 full threshold protocol and SAP. This was used along with the 30-2 Swedish Interactive Threshold Algorithm-standard protocol for at least 3 years in all patients.

A linear mixed model was employed to measure time courses of the mean of the FDT threshold values and mean total deviations (TDs) in SAP-normal and abnormal fields.

The findings demonstrated a significantly negative change in the mean FDT threshold values in the SAP-normal hemifield. However, the mean changes in TD values by SAP were not statistically significant.

SAP-abnormal hemifield experienced a significantly more negative change in the mean TD values, but FDT threshold values presented with no significant differences between the two hemifields.

Recent Videos
Anat Loewenstein, MD, speaks about the 22nd Annual Angiogenesis, Exudation, and Degeneration Meeting in February 2025 and shares her global forecast for AI-driven home OCT
Sarah M. Thomasy, DVM, PhD, DACVO, a veterinary ophthalmologist at UC Davis, talks about how her research at the Glaucoma 360 symposium
I. Paul Singh, MD, an anterior segment and glaucoma specialist, discusses the Glaucoma 360 conference, where he participated in a panel discussion on the use of artificial intelligence (AI) in glaucoma care.
Charles Wykoff, MD, PhD, discusses his Floretina ICOOR presentation topic, retinal non-perfusion in diabetic retinopathy, with David Hutton, editor of Ophthalmology Times
Elizabeth Cohen, MD, discusses the Zoster Eye Disease study at the 2024 AAO meeting
Victoria L Tseng, MD, PhD, professor of ophthalmology and glaucoma specialist, UCLA
Brent Kramer, MD, of Vance Thompson Vision speaks at the 2024 AAO meeting
© 2025 MJH Life Sciences

All rights reserved.