Yoga in GoaYoga in Goa

Effect of Selected Yogic Practices on Eye Sight

Balakrishna K.*

*Dept. Yogic Science Mangalore University - Konaje

Introduction :

Eyes are the most important sense organs of human body which provide visual perception. Eyes are the sense organs of sight and hence are known as photo receptors. Eyes help to provide the knowledge of external environment and what is happening around. Without eyes we can imagine how our mental life will be and how draw back will it be for leading a happy life. Eyes have got that great ability to perceive objects because the sensory receptors present in the eye have the ability to receive the stimulus light reflected from the object which we are viewing.

In this regard here is a small effort of study, on the effect of yogic practices on myopia and hyperopia. This is one of the important diagnostic criteria for many visual disorders. In this study, more emphasize is given for "Trataka" a purificatory method explained in yoga texts, to overcome impurities in and around the eye region.


The study was designed to investigate "The effect of selected yogic practices on eyesight" has been conducted under the Dr. K Krishna Sharma Chairman, Dept. of Human Consciousness and Yogic Sciences, Mangalore University. Ten subjects, of Experimental group are randomly taken from the Mangalore city with age group 10 to 56yrs. They were taught selected yogic practices for one hour daily for the period of one month at the Avishkar Yoga Center, Bejai Mangalore. The study shown that the regular practice of the selected yogic techniques helped improve the eyesight in the experimental subjects.

Materials and Methods:

The present study was conducted to assess the effect of selected yogic practices on eyesight of the subjects of the age between 10-56yrs. There were 10 volunteers to participate in the study. In the beginning of the study taking case history which included main complaint, present and past history, history and general examination were recorded in all the subjects. The practices were practiced daily for one hour. Trataka practiced in a dark room. The average time required for completion for trataka is varied from 3mins to 10mins. Then asana and Pranayama practices were done in a well ventilated room. New asana and Pranayama were included day by day in the first week starting with two asanas on the first day. Practices were carried out in two sessions. One session was in between 5.30am to 6.45am for four people and the other one was 5.30 to 6.45 pm for six people for the convenience of the subjects. A period "t" test was employed in the study to analyse the significance of the result statistically.

The following Parameters were undertaken for the present study:
Vision test
Power test
Retina test
Body mass index

BMI = Weight
          (Height) 2 m

Kriya: Jala Neti, Trataka.
Asanas: Swastikasana. Vajrasana. SuptaVajrasana Pavanamuktasana. Bujangasana. Shimasana. Viparitakarani. Uttanapadasana. Savasana 1& 2.
Pranayama : Ujjayi (21 rounds). Anuloma-Viloma (21 rounds). Bhastrika Brahmari


All the subjects under the study were tested before and after one month of yoga training which consisted of one hour of practice in a day. The final result shows an overall improvement in eye.
  • The vision was found improved in 6 subjects out of 10
  • The power also found improved in 7 subjects out of 10.
  • The all 10 subjects are improved in B.P & Fat%.
A paired "t" test was applied for each parameter to find out the significance of the result. The result is table below.

Sl. No

1 Weight 57.5 56.6 16.75 15.54 1.7842 0.1081 NS
2 Fat 16.71 16.3 6.15 5.69 2.4067 0.04273 SG
3 H2o 41.54 42.79 17.36 5.69 -6.4378 0.0002 SG
4 BP(S) 125.3 121.8 13.82 8.18 2.171 0.0579 SG
5 BP(D) 72 76 10.28 5.57 2.4325 0.0425 SG
6 VISION(R) 376.22 394.75 378.31 621.17 -0.18 0.85 NS
7 VISION(L) 277.09 295.1 293.87 430.53 -0.33 0.74 NS
8 POWER(R) 1.02 2.32 0.50 1.02 2.9465 0.05251 SG
9 POWER(L) 0.76 0.83 0.21 0.22 -2.32 0.27 NS
10 RETINA(R) 375.78 349.59 555.28 553.57 1.36 0.20 NS
11 RETINA(L) 376.90 370.02 611.98 615.07 0.62 0.54 NS


The present study reveals that the concerned parameters of eyesight of the subjects of experimental group shown overall improvement in eyesight after one month of yogic intervention. As per the results of the subjects before and after the practice, it is known that there is notable improvement in vision, power & retina showed a better improved in experimental group even though statistically not significant. The B P improved from the mean 125.3 to 121.8 with a significant p < 0.05. The right eye power, improved from the mean 40.32 to 38.23 with a significant p < 0.05. The left eye power improved from the mean 0.76 to 0.83 even though not significant. The eye vision for right and left and retina right and left improved after practice, even though statistically not significant. A longer duration programme may give better results. B P and Fat percentage level got the significant results.


  • Regular practice of selected yogic techniques helps to improve the eyesight.
  • The practice of yoga offers improvement of overall health.
  • Regular practice of selected yogic techniques can work as a therapeutic tool for the treatment of Eye sight problems by improving the eye power.

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