What I see is very subtle, and only out of the right eye -- to the far right of the visual field. Nothing in the left eye.
Regarding the right eye, there are no "lights," really...it's just a brief, momentary flash which is not sharp. The brief, momentary flash is more like a quick blur, as if a small incandescent bulb were quickly turned on and off on my right side. It occurs perhaps once every 30-60 minutes, as far as I can tell. (I've seen the truly sharp flashes like lightning bolts before and reported them to my primary opthalmologist, who is out of the country right now. Retinal detachment
was successfully treated by vitrectomy
nine months ago, good recovery, no recurrence of symptoms, frequent follow-ups and examinations by the doctor, no detection of retinal tears, no doctor concerns as of end of July 2009.)
Vision in the right eye is good...ironically better than before the vitrectomy, for a variety of reasons, including the fact that an articifial lens
was implanted at the time of the vitrectomy (due to cataracts
). There have been no complications from the lens implantation, vision is good based on frequent check-ups, no infection, just some capsule clouding which may be corrected in another 6-8 months or so (this to avoid inflammation and potential complications from inflammation). Further, I cannot detect any diminution of vision shortly after the use of the infrared camera and lights.
I have no blind spots of any kind at all that I can detect, anywhere in the visual field. I don't detect any relationship between the use of the infrared camera and lights and blind spots.
I would add that the only medical concern that has arisen in the past year has been macular pucker
and cystoid macular edema
, first reported in April 2009 and treated in May 2009 with steroid injections and subsequent drops. The CME has subsided based on OCT and doctor examination and seems to be much better at this time -- there's less waviness in the vision and greater focus in the middle of the visual field.
In truth, this business of "a light incandescent bulb going on and off on the right side" is my brief report of an anomaly that seemed to coincide in time with the use of the infrared camera and lights. Other than this brief report, I am generally a patient who received successful treatment for retinal detachment, recovering fairly smoothly while treating the secondary issues due to macular pucker and CME, with few complaints. This anomaly is sort of an "intrusion," so to speak, on an otherwise normal path of recovery.
If it makes any difference, the infrared camera has to calibrate before starting with any respondent, including myself. This is roughly a 1-2 minute procedure in which you can see your face in the computer screen and you can see small crosshairs on each pupil while you are directed to focus on a series of targets as they move across the computer screen. May not make any difference. Your call.
Also, I have just recently (in the past 4-5 days or so, roughly coinciding with the use of the infrared camera and lights) started to use a prescription soft contacts lens on the right eye for correction of minor farsightedness
and astigmatism. (It's a toric lens.) No discomfort, seems to fit well, corrects the vision to 20/20 without much complication. Bear in mind that the right eye was seeing about 20/30 without correction by the lens. I'll let you be the judge of whether this is relevant.
Thanks so much, Dr. James.