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HANNU VOIPIO, MD; LEA HYVARINEN, MD

Arch Ophthalmol. 1966;75(6):799-802.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

A new method for objective measurement of visual acuity based on arrest of the optokinetic response has been previously described by one of us¹ and a strong positive correlation has been found between subjective Snellen acuity and objective visual acuity (r =0.92 to 0.94). When using direct visual observation of eye movements the method is very rapid.

Other methods of examining visual acuity based on arresting optokinetic nystagmus (OKN) have also been described. Recently Wolin and Dillman² improved the method described by Ohm in his numerous publications³ to a quantitative examination. These authors use as the arresting factor a white circular spot which appears in the middle of the optokinetic stimulus area. When using the emergence of a bright spot as a measure of visual acuity, the procedure is based chiefly on measuring minimum visible and is not a measure of minimum separable. Nevertheless, Wolin and Dillman . . . [Full Text PDF of this Article]

Author Affiliations
Helsinki

From the Helsinki University Eye Hospital.

Footnotes
Submitted for publication Nov 26, 1965.

Reprint requests to University Eye Hospital, Haartmaninkatu 4, Helsinki 29, Finland (Dr. Voipio).

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