slow refresh rate/scan effect

Hi,
I occasionally on getting ready to sleep at night, with room light on and maybe hall light still on, see something resembling a slow refresh rate/vertical scan on an old crt monitor. It's not bright, but just enough to  notice. Is this the "flashing" the opthamologist told me to watch for after a repair on a small retinal tear? I previously had a vitreous hemmhorage which cleared up by itself 90% without vitrectomy after a couple years.

[John C Hagan III, MD, FACS, FAAO]

Not likely. Retinal tear or vitreous tug flashes very bright and very short duration like a flashbulb or a flash of lightening at night.  More likely entopic phemonena. (read about on wikipedia). Do have your retina checked by your Eye MD and discuss with him/her.
JCH MD

[karlbr]

Thankyou, that does ease the mind as retina specialist recently examined eye, and said it looked good besides cataract, which can be taken care of.

[John C Hagan III, MD, FACS, FAAO]

best of luck
JCH MD