Accuracy of evoked potential refractometry using bar gratings

I. Rentschler; D. Spinelli

Accuracy of evoked potential refractometry using bar gratings

I. Rentschler, D. Spinelli

Fondazione Santa Lucia

Research output: Contribution to journal › Article › peer-review

Abstract

We recorded cortical potentials evoked by phase-alternating square-wave gratings. Significant effects of varying the refractive power of the eye are obtained only at 5 cycles/degree (cy/deg) and above. The extrapolation to zero amplitude of the evoked response as a function of spatial frequency predicts the psychophysical visual acuity even for the myopic eye. As the sensitivity of meridional refraction using sufficiently fine bar gratings is better than 0.5 D it provides a suitable means for the measurement of astigmatism.

Original language	English
Pages (from-to)	67-74
Number of pages	8
Journal	Acta Ophthalmologica
Volume	56
Issue number	1
Publication status	Published - 1978

ASJC Scopus subject areas

Ophthalmology

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Accuracy of evoked potential refractometry using bar gratings

Abstract

ASJC Scopus subject areas

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