Abstracting and Indexing

  • Google Scholar
  • CrossRef
  • WorldCat
  • ResearchGate
  • Academic Keys
  • DRJI
  • Microsoft Academic
  • Academia.edu
  • OpenAIRE

Impact of Acceleration on Human Visual Acuity and Stereopsis

Author(s): Sunina A, Ramachandra V, Rajib Mandal, Yogesh Vaghela

Purpose: To assess the impact of horizontal acceleration on human visual acuity and stereopsis.

 Methods: The written consent of 60 subjects (36 females and 24 males) aged between 18-24 years was taken after proper explanations. History taking followed by VA measurement, refraction, slit lamp examination, Ophthalmoscopy was performed to rule out the exclusion criteria. Measurements of near visual acuity and stereopsis was done in 3 speeds, slow, moderate and high speed of tread mill for all subjects. Static and dynamic VA measurements was noted. Dynamic VA was measured in tread mill with examiner holding the VA chart. After completing the near visual acuity examination, participant was subjected to stereopsis test using the stereo-test circles with both eyes. Duration of each test was noted.

Results: The ANNOVA test analysis revealed no significant difference in visual acuity and stereopsis measured in slow and moderate speed in comparison with static visual acuity and stereopsis (p>0.05). However, a highly significant difference was found in visual acuity and stereopsis measured during high speed (p<0.01). Also, it was observed that time taken to read visual acuity and stereopsis chart increased with increasing speed (p<0.01). It was also found that majority of subjects experienced different level of dizziness, headache, ocular discomfort during acceleration.

Conclusion: High acceleration had a highly significant effect on visual acuity and stereopsis.

© 2016-2022, Copyrights Fortune Journals. All Rights Reserved!