isopters

isopters

(ī-sŏp′tĕrz) [″ + opter, observer]
Lines on a chart of the field of vision that connect points of equal visual acuity.
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References in periodicals archive ?
The area of isopters obtained by SKP has already been measured in patients suffering from advanced glaucoma, retinal dystrophies, and neuroophtalmological diseases [30], as well as epilepsy patients treated with vigabatrin [31].
Brzozowska et al., "Relationship between the area of isopters and vigabatrin dosage during two years of observation," BMC Ophthalmology, vol.
The residual central island of vision was defined as an isopter constricted less than the central 30[degrees].
In autumn, a slight return of beetles and isopters in the menu of the hedgehog but the hymenoptera remain the most preponderant in the feeding of this animal.
Visual field improvement was defined as an improvement of the field defect by at least 10[degrees] horizontally and 15[degrees] vertically using similar isopters on the Goldman visual fields and significant changes in mean and pattern deviations in Humphrey visual fields.
Evaluation of efficacy and non- repellency of indoxacarb and Fipronil treated soil at various concentration and thickness against two subterranean termites (Isopters; Rhinotermitidae).
John's peripheral visual fields were plotted using Goldmann visual field equipment (see Figure 1 for the left eye and Figure 2 for the fight eye) with 14e and 12e isopters. John said that as far back as his early school days, he did not know where to start writing on a blank piece of paper.
Goldmann perimetry employs primarily a kinetic technique to plot boundaries of isopters (points joined together by a drawn line with equal levels of estimated sensitivity) and scotomas (depressed areas of sensitivity) by moving a visual stimulus from a non-seeing to a seeing region.
Generally the blind spot position/size and at least three isopters are presented, having been selected to demonstrate the location, depth and extent of any significant variation in the visual field.
The visual field was assessed by means of Goldmann perimetry with the III4 and V4 isopters. The central area was examined by means of the Humphrey Field Analyzer (central 10[degrees], Swedish interactive test algorithm standard method; Bengtsson, Olsson, Heijl, & Rootzen, 1997) because this test allows a more detailed examination of the central area than does Goldmann perimetry.
Studies on the effects of age on the central and peripheral isopters of the visual field in normal subjects.