PURPOSE To present and evaluate a new method of estimating rates of retinal ganglion cell (RGC) loss in glaucoma by combining structural and functional measurements. DESIGN Observational cohort study. METHODS The study included 213 eyes of 213 glaucoma patients followed up for an average of 4.5 ± 0.8 years with standard automated perimetry visual fields and optical coherence tomography. A c...

Background: Motion detection perimetry and frequency doubling perimetry are methods that have been developed with the goal of detecting glaucomatous field defects earlier than conventional white-on-white perimetry. It is well recognized that the development of cataract and pupillary constriction can significantly influence perimetric thresholds when screening for, or following the progression o...

PURPOSE To investigate the effect of intraocular straylight (IOS) on threshold measurements made by four types of perimetry: standard automated perimetry (SAP), frequency-doubling technology (FDT) perimetry, flicker-defined form (FDF) perimetry, and the Moorfields Motion Displacement Test (MDT). METHODS Six healthy young (21-29 years) psychophysically experienced observers were tested five ti...

Objective: To evaluate structural and visual field (VF) changes after ≥1 year of a single acute primary angle closure (APAC) attack using spectral-domain optical coherence tomography (SD-OCT) standard automated perimetry (SAP). Methods: Patients with unilateral APAC crisis at least 1 ago were included consecutively from 2013 to 2016. Contralateral eye was used as control. All patients underwent...

PURPOSE To investigate the effects of divided attention on conventional automated perimetry (CAP) and luminance size threshold perimetry (LSTP). METHODS Ten healthy subjects, ages 27 to 65, with two perimetry types (CAP and LSTP) were tested in random order. At a later session, these tests were given with a mental workload to simulate the effect of anxiety or distraction on subjects performin...

Methods: Forty eyes of 40 patients with PAC underwent detailed ophthalmic evaluation including applanation tonometry, gonioscopy, optic disc evaluation with +78D lens and achromatic automated perimetry. UBM was performed to evaluate angle parameters before and after LPI to study the trabeculariris angle (TIA), the angleopening distance at 500 mm (AOD) and the central anterior chamber depth (ACD...

High-pass resolution perimetry, or the "ring test," is a recently developed type of acuity perimetry. To determine its test-retest variability, we studied 10 normals and 10 patients with idiopathic intracranial hypertension (IIH) by testing both eyes four separate times. There was no increase in variability from the center out to 21 degrees of visual field eccentricity. However, there was a sig...

OBJECTIVE To compare the ability of 24-2 frequency-doubling perimetry (FDP-Matrix) with standard automated perimetry with the Swedish interactive threshold algorithm (SAP-SITA) in detection of visual function abnormalities in patients with glaucomatous-appearing optic discs (GAOD). METHODS This observational case-control study included 80 patients with GAOD and 54 control subjects diagnosed b...

Aim: To examine whether high spatial resolution perimetry (HSRP) could identify fine scale scotomata which may not be apparent with conventional perimetry. The HSRP was performed in the nasal field, as this location is a recognised site for the early occurrence of glaucomatous defects. Method: 16 early glaucoma eyes, 17 glaucoma suspect eyes, and 20 age matched healthy control eyes underwent co...

PURPOSE To determine whether the hill of vision for Short-Wavelength Automated Perimetry (SWAP) is shallower for women who consume phyto-oestrogen-rich foods than for women who do not. METHODS Visual field data were compared for two groups of healthy amenorrhoeic women 48-69 years-old with normal vision and not using hormone replacement: (1) 24 subjects who reported consuming soy and/or flax ...