black squiggles and light flashes in the dark

I have been seeing black squiggles during the daytime and small white flashes when I blink my left eye in the dark for 5 days.  I am a type 2 diabetic, taking Janumet 50mg/1000mg, morning fasting of 100.   I am 59 have had the beginnings of cataracts for several years.  I last saw my ophthamologist 4 months ago and was told everything is fine.  Thank you.

[Sandra M Brown, MD]

It sounds like you are having "flashers and floaters".  This is due to traction on the retina, not due to the diabetes.  You should be re-evaluated by your eye doctor as you could be developing a (normal) event called a posterior vitreous detachment.  A PVD can sometimes cause holes or tears in the retina and should be monitored until the process is complete.