Sungazing is a practice that includes gazing at the Sun for nourishment or as a spiritual practice. Looking into the Sun is dangerous, and can cause solar retinopathy and lead to permanent eye damage or blindness. There is no scientific evidence that sungazing provides health benefits.
Some proponents of sungazing claim increased energy levels and decreased appetite; as with other forms of inedia, this claim is not considered credible due to the lack of scientific studies confirming it.
Sungazing is also part of the Bates method, an alternative therapy intended to improve eyesight. Ophthalmologists do not regard the method as useful; the British Medical Journal reported that "Bates (1920) advocated prolonged sun-gazing as the treatment of myopia, with disastrous results".
The practice of sungazing is dangerous. Looking directly at the Sun for even brief periods of time may cause blindness or severe damage to the eye. Solar retinopathy, damage to the eye’s retina due to solar radiation, and blindness to varying degrees and persistence frequently result from sungazing during a solar eclipse. Although vision loss due to this damage is generally reversible, permanent damage and loss of vision have been reported. Most eye care professionals advise patients to avoid looking directly at the sun. Exposure to ultraviolet radiation, produced by the sun, is associated with damage to the eye, including pterygium and cataracts.
At least one practitioner continued the practice despite clear evidence of eye damage.
- Liberatore, Paul (2009-09-30). "Mill Valley man's film on people who stare at the sun among featured at festival". Marin Independent Journal. Retrieved 2009-10-17.
- Stokkermans TJ, Dunbar MT (Oct 1998). "Solar retinopathy in a hospital-based primary care clinic". J Am Optom Assoc 69 (10): 625–36. PMID 9805443.
- Swift online newsletter of the JREF
- "Robert Todd Carroll". Skepdic.com. 2003-12-01. Retrieved 2009-09-22.
- Chou, Brian (15 September 2004). "Exposing the Secrets of Fringe Eye Care". Review of Optometry 141 (9).
- Ridgway, A. E. (1967). "Solar retinopathy". BMJ 3 (5559): 212–4. doi:10.1136/bmj.3.5559.212. PMC 1842517. PMID 6028468.
- D van Norren (October 1, 1991). "Photochemical Damage to the Eye". News Physiol Sci 6 (6): 232–234. 1548-9213/91.
- Chen JC, Lee LR (November 2004). "Solar retinopathy and associated optical coherence tomography findings" (PDF). Clin Exp Optom. 87 (6): 390–3. doi:10.1111/j.1444-0938.2004.tb03100.x. PMID 15575813.
- Yannuzzi LA, Fisher YL, Krueger A, Slakter J (April 13, 1987). "Solar retinopathy: a photobiological and geophysical analysis". Trans Am Ophthalmol Soc 85: 120–58. PMC 1298770. PMID 3328915.
- Krasniz I, Beiran I, Miller B (1999-11-01). "Retinal lesion due to excessive exposure to sunlight". Harefuah 137 (9): 378–80, 431, 430. PMID 11419039.
- n/a. "Health Effects from Ultraviolet Radiation: Report of an Advisory Group on Non-Ionising Radiation". Documents of the NRPB 13 (6). ISBN 0-85951-475-7.[dead link]
- Solomon, A S (2006). "Pterygium". British Journal of Ophthalmology 90 (6): 665–6. doi:10.1136/bjo.2006.091413. PMC 1860212. PMID 16714259.
- Neale, Rachel E.; Purdie, Jennifer L.; Hirst, Lawrence W.; Green, Adèle C. (2003). "Sun Exposure as a Risk Factor for Nuclear Cataract". Epidemiology 14 (6): 707–12. doi:10.1097/01.ede.0000086881.84657.98. PMID 14569187.