Posted by nn (193.216.93.94) on July 04, 2004 at 13:20:01:
In Reply to: Re: Upside down position: Glaucoma warning! posted by Blacksunshineaz on July 04, 2004 at 07:06:34:
The eye is filled with liquid. When upside down the blood rushes to your head and pressure there increase. This also affects the pressure inside the eye. A short and temporary increase in the intraoccular pressure is no problem, but if you stay inverted daily, it might lead to optical nerve damage over time.
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: Once I had a slight vision impairment after selfing, where I'd have a flashing in my left eye on the periphery that took quite a while to go away. I think it may have been due to the pressure on my neck and the nerves, but I don't understand how you can put pressure on your eyes by doing this.
: : Hi all,
: : A warning about the upside down position. Being in this position dramatically increase the pressure inside the eye, so doing this for a long period, say an hour, and frequently (fx. daily) may damage the optical nerve. In other words you could get self inflicted glaucoma. There are cases of this described in the medical litterature. This was practitioners of yoga that had damaged optical nerves, but apparently normal pressure when examined. The damage happened during the regular practice of the head stand position.
: : NN, medical student