GHT

(redirected from Glaucoma Hemifield Test)
AcronymDefinition
GHTGearhart (Amtrak station code; Gearhart, OR)
GHTGeorge House Trust (UK)
GHTGenius Home Theatre
GHTGeographic Hash Table
GHTGearhart (Oregon)
GHTGresham Computing PLC (stock symbol)
GHTGarden Hose Thread (thread type)
GHTGlorious Himalaya Trekking Pvt. Ltd. (Nepal)
GHTGrowth Hormone Therapy
GHTGeneralized Hough Transform
GHTGlycol Heat-Traced
GHTGlobal Health Trax Inc
GHTGlaucoma Hemifield Test
GHTGorlov Helical Turbine
GHTGlobal Health Track (university program)
GHTGulfstream Healthcare Technology (Tampa, FL)
GHTGrand Haven Township (Michigan)
GHTGreen Herbal Tea
GHTGeothermal Resources Ltd (Australia)
GHTGeorgia Home Theater (Atlanta, Georgia)
GHTGeneralized Hyperplane Tree
GHTGiotto High Technology (Italy)
GHTGas Holdup Tool
GHTGasoline Hydrotreater
GHTGroup Halal Trade (French)
GHTGibraltar Heritage Trust
GHTGeminis Horizontal Lathe
GHTGraduate Handbook Template
GHTGarni Hotel Tabor (Maribor, Slovenia)
GHTGolf House Tennessee
GHTGround Heat Tube
GHTGreater Holy Temple (Kansas City, Missouri)
GHTGlobal Health Today (Vista, California)
GHTGoodwin Hunt Taylor Limited (Arlington, Virginia)
GHTGerman Horse Team (gaming)
GHTGlenn Hill Tennis
GHTGolden Hill Travel (UK)
GHTGary Heer Transport Ltd. (Calgary, Alberta)
References in periodicals archive ?
The inclusion criteria for normal subjects were a normal-appearing ONH, intact neuroretinal rim and RNFL, normal standard automated perimetry (defined as a glaucoma hemifield test within normal limits and a PSD within 95% confidence interval limits), and IOP of [less than or equal to]21 mmHg.
In short, the output from the examination offers a variety of options in appraising a visual field including numerical threshold sensitivities, greyscale printouts, total deviation probability plots, pattern deviation (PD) map, glaucoma hemifield Test (GHT) and visual field indices.
Heijl, "Glaucoma hemifield test: automated visual field evaluation," Archives of Ophthalmology, vol.
Eyes with glaucomatous visual field defects were defined as those that met two of the following criteria as confirmed by more than two reliable consecutive tests, in addition to compatibility with optic nerve appearance: (1) a cluster of three points with a probability of less than 5% on a pattern deviation map in at least one hemifield and including at least one point with a probability of less than 1% or a cluster of two points with a probability of less than 1%; (2) a glaucoma hemifield test (GHT) result beyond 99% of the age-specific normal limit; and (3) a pattern standard deviation (PSD) beyond 95% of the normal limit.
Normal visual fields were defined based on mean deviation (MD) and pattern standard deviation (PSD) within 95% confidence limits and a glaucoma hemifield test (GHT) within normal limits.
A hemifield defect was defined as three or more significant (P < 0.05), nonedge, contiguous points, at least one highly significant (P <0.01) point in the pattern deviation plot, and a Glaucoma Hemifield Test grading outside normal limits.
Glaucomatous VF defects were defined on the basis of the Humphrey 30-2 VF testing and confirmed through at least 2 reliable examinations for which 1 or more of the following criteria were met: a cluster of 3 or more nonedge points with a probability of less than 5%, including 1 point or more with a probability of less than 1%, on the pattern deviation map in at least 1 hemifield; a pattern standard deviation with a probability of less than 5%; and glaucoma hemifield test results outside the normal limits [11].
A glaucomatous VF change was defined as the consistent presence of a cluster of three or more points on the pattern deviation plot with a probability of occurrence of <5% in the normal population, having one point with a probability of occurrence in <1% of the normal population, glaucoma hemifield test results outside the normal limits, or a pattern standard deviation (PSD) with P < 5%.
Visual field defects were defined as (1) a cluster of [greater than or equal to] 3 nonedge contiguous points with probabilities of <5% on the pattern deviation plot, at least one of which was depressed below the 1% level, (2) glaucoma hemifield test results outside normal limits, or (3) a pattern standard deviation (PSD) with a p value < 5% as confirmed by at least two reliable examinations.
Eyes defined as having glaucomatous VF defects met two of the following three criteria: (1) a cluster of three points with a probability of <5% on a pattern deviation map in at least one hemifield, including at least one point with a probability of <1% or a cluster of two points with a probability of <1%; (2) a glaucoma hemifield test result outside the normal limit; and (3) a pattern standard deviation < 5%.
Glaucomatous visual field defect was determined according to Anderson's criteria [14] as follows: (1) having a cluster of 3 points with P < 5% in the pattern deviation plot in a single hemifield, including at least 1 point with P < 1%, (2) receiving glaucoma hemifield test results outside the normal limit, or (3) having a pattern standard deviation of < 5%.
A glaucomatous VF was defined as a glaucoma hemifield test outside normal limits on at least two consecutive baseline tests and the presence of at least three contiguous test points within the same hemifield on the pattern deviation plot at P < 1%, with at least one at P < 0.5% when excluding points on the edge of the field or those directly above and below the blind spot.