Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Neville Drasdo"'
Publikováno v:
Optometry and Vision Science. 85:1036-1042
Purpose. To describe two methods of neural damage quantification from perimetric data, and to discuss their theoretical implications. Methods. A recently published model of retinal ganglion cell (GC) receptive field density is used to obtain best est
Autor:
Rhianon L. Perrott, David R. Owens, Rachel Valerie North, Neville Drasdo, Dominique Victoria Arlotte
Publikováno v:
Documenta Ophthalmologica. 109:35-42
Purpose: To investigate the effect of elevated plasma glucose levels on oscillatory potentials (OPs) in patients with diabetes mellitus. Method: 15 patients with type 2 diabetes mellitus, with no ophthalmoscopically visible signs of diabetic retinopa
Publikováno v:
Vision Research. 43(2):221-226
We used background adaptation and silent substitution techniques to record full-field ON and OFF-visually evoked cortical potentials (VECPs) selectively from the S-cone and L- and M-cone pathways in 15 patients with primary open angle glaucoma (POAG)
Autor:
Y. H. Aldebasi, Rachel Valerie North, James Edwards Morgan, Neville Drasdo, John M. Wild, Zohreh Chiti, Katharine Eirlys Mortlock
Publikováno v:
Ophthalmic and Physiological Optics. 22:455-462
Advancing the knowledge of ocular image quality is important in the development of new tests for the earlier detection of primary open angle glaucoma (POAG). Loss of blue sensitivity is an important feature of POAG; however, it is difficult to separa
Autor:
James Edwards Morgan, Rachel Valerie North, Nicholas John Leighton Sheen, Christopher Ellis Aldridge, Neville Drasdo
Publikováno v:
American Journal of Ophthalmology. 131:716-721
PURPOSE: To determine effects of astigmatism and working distance on optic nerve head images in normal patients using the Heidelberg Retina Tomograph. METHODS: The optic disks of 51 normal healthy subjects, aged 19 to 44 years, were imaged through di
Publikováno v:
Ophthalmic and Physiological Optics. 16:3-10
Some research reports suggest that visual anomalies may have a causative role in dyslexia, and on this basis certain forms of therapy have been proposed. Recently, we have published the initial results of a matched group study which found dyslexia to
Publikováno v:
Proceedings of the Royal Society of London. Series B: Biological Sciences. 261:129-138
It is generally believed that the perception of moving targets is mediated by the magnocellular (M) pathway in primate vision, but evidence is emerging that the parvocellular (P) pathway may also play a role in motion perception. Human peripheral vis
Publikováno v:
Optometry and Vision Science. 71:619-628
Scotopic sensitivity syndrome or the Irlen syndrome describes symptoms of asthenopia anamolous visual performance experienced while reading that are lessened by colored filters. One putative explantation for this condition relates to pattern glare: a
Publikováno v:
The Lancet. 359:2251-2253
It has been postulated that diabetic retinopathy might be initiated by hypoxia during the hours of darkness. Oscillatory potentials, which reflect inner retinal function, are reduced in diabetic patients. We tested the effect of oxygen inhalation on
Autor:
Neville Drasdo, John Lowe
Publikováno v:
Optometry and Vision Science. 69:182-185
Forty-eight patients with retinitis pigmentosa completed at home a questionnaire about everyday tasks, and recorded their distance visual acuities on reduced Snellen charts. Respondents were asked to assess their own abilities for seven tasks involvi