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Abstract

Objectives:

The study objective was to study the change in the critical flicker fusion (CFF) after a yogic visual concentration practice (trataka).

Design:

Thirty (30) subjects participated in a study where they were evaluated for the CFF immediately before and after the practice. The subjects also participated in a comparable control session.

Subjects:

The subjects were 30 volunteers in the age range 25–40. Fifteen (15) of the volunteers were male. The mean age was 31.33 ± 4.67.

Results:

The CFF showed a statistically significant increase from 37.35 ± 2.84 to 38.66 ± 2.91 after the yoga practice of trataka. The control session did not produce a statistically significant change in the CFF.

Conclusions:

An increase in the CFF is seen immediately after the yogic concentration practice called trataka.

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