Results 151 to 160 of about 1,069,408 (197)

A New Index to Monitor Central Visual Field Progression in Glaucoma

Ophthalmology, 2014
The visual field index (VFI) summarizes global visual field (VF) data and was developed to monitor glaucoma progression using 24-2 and 30-2 strategies. We applied similar principles and statistical procedures to develop a new parameter, the central field index (CFI), to monitor 10-2 VF progression.Retrospective cohort.Glaucoma patients with paracentral
Carlos Gustavo, de Moraes, Rafael L, Furlanetto, Robert, Ritch, Jeffrey M, Liebmann   +3 more
openaire   +4 more sources

A Visual Field Index for Calculation of Glaucoma Rate of Progression

American Journal of Ophthalmology, 2008
To present a new perimetric index for calculating the rate of glaucomatous progression and to compare its performance with the traditional mean deviation index (MDI).Experimental study describing a device and retrospective cohort study.We developed a new visual field index, the glaucoma progression index (GPI), intended to be less affected by cataract ...
Boel, Bengtsson, Anders, Heijl
openaire   +4 more sources

Central Field Index Versus Visual Field Index for Central Visual Function in Stable Glaucoma

Journal of Glaucoma, 2017
Objective: To compare the variability of central field index (CFI) versus visual field index (VFI) in stable glaucoma with central fixation involvement. Materials and Methods: For this retrospective study, we identified multiple visual fields (VFs) of patients with repeatable ...
Aparna, Rao, Debananda, Padhy, Harika, Mudunuri, Avik K, Roy, Sarada P, Sarangi, Gopinath, Das   +5 more
openaire   +2 more sources

Five-year forecasts of the Visual Field Index (VFI) with binocular and monocular visual fields

Graefe's Archive for Clinical and Experimental Ophthalmology, 2012
In clinical care, visual field (VF) damage is assessed using monocular VF testing, yet patients perceive the world binocularly. This study was conducted to compare 5-year forecasts for the Visual Field Index (VFI) generated from series of binocular and monocular VFs.Series of ten consecutive VFs (Humphrey 24-2 Full-threshold) spanning on average 3.7 ...
Ryo, Asaoka, Richard A, Russell, Rizwan, Malik, David F, Garway-Heath, David P, Crabb   +4 more
openaire   +2 more sources

Performance of the Visual Field Index in Glaucoma Patients With Moderately Advanced Visual Field Loss

American Journal of Ophthalmology, 2014
To explore the relationship between the visual field index (VFI) and the visual field mean deviation (MD) in glaucoma patients with moderately advanced perimetric damage and to identify the magnitude of the boundary effect of VFI that occurred when the VFI estimation strategy changed from pattern deviation probability value to total deviation ...
Jun Mo, Lee, Nila, Cirineo, Meera, Ramanathan, Kouros, Nouri-Mahdavi, Esteban, Morales, Anne L, Coleman, Joseph, Caprioli   +6 more
openaire   +2 more sources

Precision compensation method for visual measurement based on nonuniform refractive index field reconstruction

Applied Optics, 2023
Visual measurement is widely used in industrial manufacturing and assembly fields. Due to the fact that the refractive index field of the measurement environment is inhomogeneous, the transmitted light for visual measurements will produce errors.
Jun Wu, Chenping Zhang, Zhixiang Pan, Xiaoyu Zhang, Runxia Guo   +4 more
openaire   +2 more sources

Improvement of the visual field index in clinical glaucoma care

Canadian Journal of Ophthalmology, 2016
This article investigates the prevalence and attributes of patients with open-angle glaucoma who exhibit improvement of visual field loss in a clinical setting.We conducted a retrospective chart review of patients in a clinical glaucoma practice.We identified 719 glaucoma patients with at least 5 SITA strategy visual field tests and a minimum ...
Shawn L, Cohen, Aaron I, Rosen, Xianming, Tan, Frederick A A, Kingdom   +3 more
openaire   +2 more sources

Effect of Cataract Extraction on Visual Field Index in Glaucoma

Journal of Glaucoma, 2013
: To determine the effect of cataract on the Visual Field Index (VFI) in glaucoma patients.: Reliable visual fields (VFs) of 53 patients (53 eyes) with primary glaucoma who underwent phacoemulsification either alone or combined with trabeculectomy were analyzed before and after surgery. All patients had VFs within a period of 15 months before and after
Harsha Laxmana, Rao, Ganesh B, Jonnadula, Uday K, Addepalli, Sirisha, Senthil, Chandra S, Garudadri   +4 more
openaire   +2 more sources