RT Journal Article
SR Electronic
T1 Association of macular OCT and OCTA parameters with visual acuity in glaucoma
JF British Journal of Ophthalmology
JO Br J Ophthalmol
FD BMJ Publishing Group Ltd.
SP bjophthalmol-2022-321460
DO 10.1136/bjo-2022-321460
A1 Jo-Hsuan Wu
A1 Sasan Moghimi
A1 Takashi Nishida
A1 Vahid Mohammadzadeh
A1 Alireza Kamalipour
A1 Linda M Zangwill
A1 Robert N Weinreb
YR 2022
UL http://bjo.bmj.com/content/early/2022/09/08/bjo-2022-321460.abstract
AB Background/aims To investigate the association of macular optical coherence tomography (OCT)/OCT angiography (OCTA) parameters with visual acuity (VA) in glaucoma.Methods 144 pseudophakic primary open-angle glaucoma eyes were included. Foveal (fVD), parafoveal (pf), perifoveal (perifVD) and whole-image vessel densities (wiVD) of superficial and deep layers, and their corresponding ganglion cell complex (GCC) thicknesses were obtained from OCTA 6×6 mm2 macula scans. Foveal avascular zone (FAZ) area, FAZ circumference and foveal density-300 (FD300) were measured. Correlation between OCT/OCTA parameters and Logarithm of the Minimum Angle of Resolution VA (logMAR VA) in early and moderate-advanced glaucoma was evaluated with age and Signal Strength Index-adjusted mixed models. Area under receiver operating characteristic (AUC) was used to evaluate discriminative power of OCT/OCTA for decreased VA (<20/25).Results In early glaucoma (80 eyes), no parameter correlated with VA. In moderate-advanced glaucoma (64 eyes), greater FAZ area (β=0.228) and circumference (β=0.063) correlated with worse VA (p<0.05), but not FD300. fThinner sectoral and global GCC was associated with worse VA (β=0.002–0.003, p<0.05), except for inferior hemifield perifGCC and wiGCC. For VD, lower superior hemifield superficial perifVD and wiVD (β=0.007–0.008) and deep fVD (β=0.004) correlated with worse VA (p<0.05). OCT/OCTA parameters showed modest ability to discriminate decreased VA, with the superior hemifield performing better than the inferior hemifield. In early glaucoma, GCC and VD showed similar discrimination (AUC=0.67–0.77). In moderate-advanced glaucoma, fGCC and pfGCC yielded higher AUC (0.75–0.81) than VD (AUC=0.63–0.72).Conclusions Some macular OCT/OCTA parameters were associated with VA in moderate-advanced, but not early glaucoma. These structural parameters may help identify glaucoma patients with impaired vision and reduced quality of life.Trial registration number NCT00221897.Data are available on reasonable request. The datasets generated and/or analysed during the current study are available from the corresponding author on reasonable request.