Frequency doubling perimetry in glaucoma early diagnosis
نویسندگان
چکیده
منابع مشابه
Frequency Doubling Perimetry
DOS Times Vol. 11, No. 6 December, 2005 The goal of perimetry is to establish an accurate estimate of visual field sensitivity. Perimetry is performed to detect early visual field defects, determine specific patterns of visual field loss for differential diagnosis and monitor for evidence of progression of field loss. Conventionally Standard Achromatic Perimetry (SAP) has been used to achieve t...
متن کاملTest-retest variability of frequency-doubling perimetry and conventional perimetry in glaucoma patients and normal subjects.
PURPOSE To compare the test-retest variability characteristics of frequency-doubling perimetry, a new perimetric test, with those of conventional perimetry in glaucoma patients and normal control subjects. METHODS The study sample contained 64 patients and 47 normal subjects aged 66.16+/-11.86 and 64.26+/-7.99 years (mean +/- SD), respectively. All subjects underwent frequency-doubling perime...
متن کاملDetection of early visual field loss in glaucoma using frequency-doubling perimetry and short-wavelength automated perimetry.
OBJECTIVE To investigate whether frequency-doubling perimetry (FDP) predicts future visual field loss with achromatic automated perimetry (AAP), just as it may be predicted with short-wavelength automated perimetry (SWAP). METHODS We recruited 62 patients selectively from an urban glaucoma practice. At the commencement of the study, each patient had ocular hypertension with normal visual fiel...
متن کاملCLINICAL SCIENCE Agreement between frequency doubling perimetry and static perimetry in eyes with high tension glaucoma and normal tension glaucoma
Aims: To investigate the agreement in results between frequency doubling technology (FDT) and the conventional automated static perimeter in eyes with normal tension glaucoma (NTG) and high tension glaucoma (HTG). Methods: 72 eyes of 36 patients, who had two or more experiences with the Humphrey field analyser (HFA) program C30-2, were examined with the screening C-20-1 program of FDT. The resu...
متن کاملFrequency-doubling technology perimetry and multifocal visual evoked potential in glaucoma, suspected glaucoma, and control patients
INTRODUCTION The gold standard in functional glaucoma evaluation is standard automated perimetry (SAP). However, SAP depends on the reliability of the patients' responses and other external factors; therefore, other technologies have been developed for earlier detection of visual field changes in glaucoma patients. The frequency-doubling perimetry (FDT) is believed to detect glaucoma earlier th...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica Scandinavica
سال: 2009
ISSN: 1395-3907
DOI: 10.1111/j.1600-0420.1998.tb00869.x