geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Size threshold perimetry performs as well as conventional automated perimetry with stimulus sizes III, V, and VI for glaucomatous loss


, : Size threshold perimetry performs as well as conventional automated perimetry with stimulus sizes III, V, and VI for glaucomatous loss. Investigative Ophthalmology & Visual Science 54(6): 3975-3983

It is thought that large perimetric stimuli are insensitive for demonstrating visual field defects. To test the hypothesis that there is no difference in the total number of abnormal test locations with total deviation empiric probability plots in glaucoma patients, we compared results of glaucoma patients tested with sizes III (0.43° diameter), V (1.72°), and VI (3.44°), and size threshold perimetry (STP), a method that finds threshold by changing stimulus size. We derived normative limits for total deviation probability plots using the second test from 60 age-matched normals. We analyzed the probability plots of 120 glaucoma patients (mean deviation was -9.3 ± 6.1 dB with a range of -0.2 to -31.6) at the 42 nonblind spot locations common to the tests. We compared the number of abnormal test locations at the 5% level among the tests using one-way repeated measures ANOVA on ranks. We stratified the results by mean deviation. There was a statistically significant difference in the number of abnormal test locations among the tests: III, 28.5; V, 29.7; VI, 27.0; and STP, 28.8, P = 0.001; Tukey pairwise comparisons were statistically significant for the assessments between sizes V and VI and between STP and size VI. When stratifying by mean deviation, with mild visual loss, size V was most sensitive, followed by STP; size VI appeared slightly less sensitive. Size V and STP provide favorable stimulus methodology for detection of mild to moderate glaucoma. Size VI appears slightly less sensitive for glaucoma with mild loss.

US$19.90

PMID: 23633660

DOI: 10.1167/iovs.12-11300


Other references

Wrachien, D. de; Lorenzini, G., 2006: Modelling spray flow and waste in sprinkler irrigation practice: an overview. A thorough understanding of the factors affecting spray flow and waste in sprinkler irrigation is important for developing appropriate water conservation strategies. To properly tackle this problem, relevant theoretical and experimental studies ha...

Bongarten, B.C.; Teskey, R.O., 1986: Water relations of loblolly pine seedlings from diverse geographic origins. Leaf conductance at three absolute humidity deficits (AHDs) (7, 14 and 21 g m-3), hydraulic conductance and components of tissue water potential were measured in one-year-old loblolly pine [Pinus taeda] seedlings from six origins representing the...

Schmuttermeier, E.; Swoboda, W.; Thalhammer, O., 1950: Aureomycin in complicated mumps in adult. Wiener Klinische Wochenschrift 62(52): 979-980

Friedman, R.H.; Stollerman, J.E.; Mahoney, D.M.; Rozenblyum, L., 1997: The virtual visit: using telecommunications technology to take care of patients. Telephone-Linked Care (TLC) technology has been developed and applied as an alternative to and a supplement for office visits as a means to deliver ambulatory care. TLC is used to monitor patients with chronic diseases, counsel patients on importa...

Horvat, B., 1999: The role of culture during the period of recovery and the development of tourism. An analysis is presented of the changing cultural values in Croatia following the War at the beginning of the 1990s. The impact of these changes on tourism in Croatia is discussed.

Marks, J.L.; Waite, K., 1997: Intracerebroventricular neuropeptide Y acutely influences glucose metabolism and insulin sensitivity in the rat. Acute administration of neuropeptide Y(NPY) into the hypothalamus and third cerebral ventricle (ICV) increases respiratory quotient, reduces energy expenditure and increases circulating, insulin, glucagon and corticosterone. Therefore, it is likel...

Pearn, J.H.; Flecker, P.O.; Gutteridge, N.; Kelsall, G.; Shaw, E.; Silverman, F., 1993: Rhesus rescue - three successful pioneering attempts to save infants with haemolytic disease of the newborn. Occasional Papers on Medical History Australia 6: 327-344

Lieftinck M.A., 1972: List of the publications of dr a diakonoff. Entomologische Berichten (Amsterdam) 32(3): 45-52

Petkovic, S.D., 1959: An anatomical classification of renal tumors in the adult as a basis for prognosis. Journal of Urology 81(5): 618-623

Yokozawa, T.; Dong, E., 2001: Role of ginsenoside-Rd in cisplatin-induced renal injury: special reference to DNA fragmentation. DNA of LLC-PK(1) cells cultured with cisplatin was fragmented to produce low-molecular-weight structures. Agarose gel electrophoresis of the DNA revealed a ladder pattern characteristic of apoptosis, indicating the induction of apoptosis by cispla...