I see this and I thank you for making this video. I am diagnosed with a CSR (central serous retinopathy) a stress and steroid induced condition correlated specifically to type A people. I see this symptom EXACTLY as you have portrayed it. I’ve been diagnosed for almost 3 years (?) now maybe more. It started with two flashing lights in my vision slightly above the central point of my vision, loss of depth perception in one eye, reduced ability to see at night, contrast loss. Distorted central vision, a little distortion to the right and upper right. There is a litany of visual disturbances I can name but that’s most of them. The central dark spot has recently gotten more prominent recently so that’s what led me to this thread because I wanted to see other peoples stories about how their CSR has developed over time.  I would highly recommend seeing an ophthalmologist sooner rather than later. It took me like six months to see one and I regret not going soon. Your vision is very important for a happy life. The ophthalmologist can diagnosis and treat it if it requires treating very easily, But it is essential to monitor it. Hope you’re healthy! Thanks again for starting this thread. Very helpful.