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Hi. I'm online and happy to answer your question today.
It is not unusual for you to experience flashes of light from continued vitreous traction even after having laser to repair a retinal tear. There is no "usual" time frame for the flashes to continue since every patient is different as to how long the vitreous takes to completely detach from the peripheral retina.
Of course, while you continue to experience the flashes of light you are still at risk for a new hole to be torn in your retina. If you notice a large increase in your floaters, a "ton" more flashes of light (like a thunder storm) or a curtain coming across your vision from any direction, get in to see your ophthalmologist right away. Also, if you have any concerns I recommend you get in for an exam....better safe then sorry :)
All of this being said, the majority of patients notice a marked decrease, if not a complete cessation, in their flashes of light within 6 to 8 weeks of the vitreous starting to detach. Keep in mind, however, that if yours last more or less then this it doesn't mean anything is "going wrong"
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