Abstract
Because the pattern-reversal visual evoked response (PVER) reflects the central retinal function, PVER results generally agree with those of psychophysical tests. The visual acuities (VAs) calculated from PVER recordings and Snellen acuity (SA) measurements were compared in 500 eyes (261 patients; ages 8 to 88 years; mean, 44.5 years). The best-corrected VA was measured using the ETDRS chart, and the PVER acuity was determined by the smallest check size that produced a definite PVER (critical check size). In 288 eyes with a critical check size of 10 min of arc, the SAs ranged from 20/15 to 20/800 (mean 20/38). In 68 eyes with a critical check size of 20 min, the SAs ranged from 20/15 to 20/800 (mean 20/97). In 70 eyes with a critical check size of 40 min, the SAs ranged from 20/20 to 20/1600 (mean 20/156). In 29 eyes with a critical check size of 80 min and 14 eyes with a critical check size of 160 min, the SAs ranged from 20/50 to 20/1600 (mean 20/312 and 20/398, respectively). In 31 eyes in which the PVER was non-recordable, the SAs ranged from 20/70 to 20/3200 (mean 20/1177). The PVER acuity using the smallest check size seemed to agree with the SA, but large deviations were observed in certain subjects.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Adachi-Usami E, Kuroda N, Yamamoto Y (1988) Clinical analysis of non-recordable pattern VECPs in 107 patients. Fortschr Ophthalmol 85:301–303
Chan H, Odom JV, Coldren J, et al. (1986) Acuity estimated by visually evoked potentials is affected by scaling. Doc Ophthalmol 62:107–117
Fagan JE Jr, Yolton RL (1985) Theoretical reliability of visual evoked response-based acuity determinations. Am J Optom Physiol Opt 62:95–99
Friendly DS, Weiss IP, Barnet AB, et al. (1986) Pattern-reversal visual evoked potentials in the diagnosis of amblyopia in children. Am J Ophthalmol 102:329–339
Howe JW, Mitchell KW, Robson C (1981) Electrophysiological assessment of visual acuity. Trans Ophthalmol Soc UK 101:105–108
Jenkins TCA, Douthwaite WA (1988) An objective VER assessment of visual acuity compared with subjective measures. Am J Optom Physiol Opt 65:957–961
Jenkins TCA, Douthwaite WA, Peedle JE (1985) The VER as a predictor of normal visual acuity in the adult human eye. Ophthalmic Physiol Opt 5:441–449
Katsumi O, Tanino T, Hirose T (1985) Measurement of contrast sensitivity function using pattern-reversal visual evoked responses. Graefe's Arch Clin Exp Ophthalmol 223:190–195
Katsumi O, Hirose T, Sakaue H, Mehta M, Rosenstein RB (1990) Effect of optical defocus on the pattern reversal visual-evoked response. Ophthalmic Res 22:383–390
Matsui Y, Mehta MC, Katsumi O, Brodie SE, Hirose T (1992) Electrophysiological findings in paraneoplastic retinopathy. Graefe's Arch Clin Exp Ophthalmol 230:324–328
Mehta MC, Katsumi O, Buzney SM, Hirose T (1992) Pattern reversal visual-evoked response as a prognostic indicator in macular gliosis. Am J Ophthalmol 113:39–44
Müller W, Schöneich H (1989) Relations between visual acuity, refraction, and the pattern reversal visual-evoked cortical potential in aphakia. Ophthalmologica 198:89–94
Norcia AM, Tyler CW (1985) Spatial frequency sweep VEP: visual acuity during the first year of life. Vision Res 25:1399–1408
Odom JV, Maida TM, Dawson WW (1982/1983) Pattern evoked retinal response (PERR) in human: effects of spatial frequency, temporal frequency, luminance and defocus. Curr Eye Res 2:99–108
Ohn Y-H, Katsumi O, Matsui Y, Tetsuka H, Hirose T (1991) Snellen acuity vs. pattern reversal VER acuity in clinical applications. Invest Ophthalmol Vis Sci [Suppl] 32:280
Raniel Y, Pratt H, Neumann E, et al. (1989) Miniature fiber-optic pattern reversal stimulator for determination of the visual evoked potential threshold: comparison with Snellen acuity. Graefe's Arch Clin Exp Ophthalmol 227:212–215
Simon F, Rassow B (1986) Retinal visual acuity with pattern VEP normal subjects and reproducibility. Graefe's Arch Clin Exp Ophthalmol 224:160–164
Skalka HS (1980) Comparison of Snellen acuity, VER acuity, and Arden grating scores in macular and optic nerve diseases. Br J Ophthalmol 64:24–29
Sokol S, Jones K, Nadler D (1983) Comparison of the spatial response properties of the human retina and cortex as measured by simultaneously recorded pattern ERGS and VEPs. Vision Res 23:723–727
Spekreijse H (1966) Analysis of E.E.G. responses in man evoked by sine wave modulated light. Junk, The Hague, pp 129–140
Spekreijse H (1983) Comparison of acuity tests and pattern evoked potential criteria: two mechanisms underlie acuity maturation in man. Behav Brain Res 10:107–117
Stadler G, Müller J (1982) Determination of visual acuity with pattern evoked cortical responses. A clinical method. In: Niemeyer G, Huber C (eds) Techniques in clinical electrophysiology of vision: Proceedings of 19th I.S.C.E.V. symposium. (Doc Ophthalmol Pro Ser 31) Junk, The Hague, pp 437–446
Teping C (1981) Visusbestimmung mit Hilfe des visuell evozierten kortikalen Potentials (VECP). Klin Monatsbl Augenheilkd 179:169–172
Towle VL, Harter MR (1977) Objective determination of human visual acuity: pattern evoked potentials. Invest Ophthalmol Vis Sci 16:1073–1076
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Katsumi, O., Mehta, M.C., Larson-Park, E.W. et al. Pattern reversal visual evoked response and Snellen visual acuity. Graefe's Arch Clin Exp Ophthalmol 232, 272–278 (1994). https://doi.org/10.1007/BF00194476
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00194476