Problems astronauts face during space missions

1. Ayan Das
2nd year
George College of Management and Science
Spaceflight Associated
Neuro-Ocular Syndrome
(SANS)

2. Introduction

3. Etiology

4. Signs

5. Symptoms
Decreased near and
distance visual acuity

6. Supportive Case study

7. Diagnostic tools for SANS

8. Figure A:- Astronaut using Optical Coherence Tomography(OCT) camera
Figure B:- Astronaut using the Fundoscope for the ocular health study
A B

9. Figure:- Optical Coherence Tomography of Preflight (top) and 30 days
prior to return (bottom), comparison showcasing Peripapillary wrinkles,
choroidal folds and optic disc edema. Source-NASA risk of Spaceflight
Associated Neuro-ocular Syndrome evidence report

10. Figure:- Preflight and Postflight fundoscopic images.
Postflight examination reveals choroidal folds (Right-pointing arrow) and
a single cotton-wool spot (Left pointing arrow). Source-NASA risk of
Spaceflight Associated Neuro-ocular Syndrome evidence report

11. Vision testing in space ?

12. Figure:- Vision testing in International Space Station

13. Management and treatment

14. Radiation Shielding eyewear in space

15. Collaborative Efforts to Prevent SANS

16. Conclusion

17. References

18. Thank You