"The ultrasound B-scan is the only way to **certainly** detect PVD"
what? um, no. you're wrong. i totally disagree with that statement as well. ever heard of a "weiss ring". google it.
The ultrasound B-scan is the only way to **certainly** detect PVD.
a dilated eye exam most certainly CAN detect PVD. so i disagree with that statement. you do not need a retinal specialist to find a PVD.
What you described at the end of your post is vitreous detachment and it is usually benign. Sometimes, VD can lead to retinal detachment, though. A dilated eye exam cannot detect VD. Retina specialists can see inside the eye using ultrasound. Go see a RS if you want to make sure...
a) you mean no actual pressure on your eye FROM OUTSIDE SOURCES. your extraocular musculature and your skull/orbit are known causes of pressure and pressure phosphenes. so i guess the short answer is YES
b) "intermittently and not constant" is MORE likely to be not dangerous. the more "constant" it is, the more likely its a real retinal problem that you should worry about. the more intermittent it is, the more likely its a migraine or phosphene
c) **ANY FLASH** that occurs predictably and reliably **ONLY** when you turn your eyes a certain direction is a phosphene. if it only happens when you turn your eyes to the right, it is most likely not a retinal problem, its most likely a phosphene.
look if you're this worried about it, go back to the eye doctor and get another dilation. yes, vitrous changes over time and causes flashes and floaters. yes, that would likely be seen on a dilated eye exam.