PURPOSE The usual stimuli in static perimetry are white-light luminance increments. However, the specific visual detection mechanisms involved in perimetry are unknown because all classes of neural mechanisms are sensitive to spectrally broadband stimuli. The objective of this study was to determine the relative sensitivities of nonopponent and opponent detecting mechanisms under standard perim...

Glaucoma is usually considered to be adequately controlled when Goldmann applanation readings are below 22 mmHg. It is, however, now known that the intraocular pressure increases to a varying degree when the patient changes his posture from sitting to a recumbent position (Galin, McIvor, and Magruder, I963; Roberts and Rogers, I964; Hetland-Eriksen, Ig66a; Inglima, I966; Tarkkanen and Leikola, ...

purpose: to assess alterations in parameters measured by the ocular response analyzer (ora) after photorefractive keratectomy (prk) with or without 0.02% mitomycin c (mmc) in myopic eyes. methods: in 33 right eyes of 33 patients, iop was determined using the goldmann applanation tonometry (gat) before and 3 months after prk. corneal hysteresis (ch), corneal resistance factor (crf), goldmann-cor...

El presente trabajo es una aportación al estudio del periodo de renovación teórica vivido en España a partir la década los sesenta. En este sentido, el pensamiento goldmaniano tuvo más que notable presencia e influencia medio hispánico, por lo seguimiento trayectoria su implantación y crítica, caso estudios generales sobre literatura sociedad, resulta necesario. artículo se abre con tratamiento...

We analyze the computational complexity of solving a single equation and checking identities over finite meta-abelian groups. Among others we answer a question of Goldmann and Russel from 1998: we prove that it is decidable in polynomial time whether or not an equation over the six-element group S 3 has a solution.

Abstract The study of the complexity equation satisfiability problem in finite groups had been initiated by Goldmann and Russell (Inf. Comput. 178 (1), 253–262, 2002) where they showed that this is for nilpotent while it -complete non-solvable groups. Since then, several results have appeared showing can be solved polynomial time certain solvable G having a normal subgroup H with factor / . Thi...

Will Goldmann applanation tonometry, the age old “gold standard” of intraocular pressure (IOP) measurement, be replaced with newer methods? One of the newer methods of IOP measurement is PASCAL dynamic contour tonometry (DCT). A review of the history, scientific principles, clinical validation and clinical utility of DCT is presented.

PURPOSE Tonometry, or measurement of intraocular pressure (IOP), is one of the most important examination procedures in ophthalmic clinics, and IOP is an important parameter in the diagnosis of glaucoma. Because there are numerous types of tonometer available, it is important to evaluate the differences in readings between different tonometers. Goldmann applanation tonometers (GATs) and noncont...