Don't have an answer for you, but will say, my doctor said not to do the amsler grid test on a computer screen. He said to print it out and then you can use a pencil to mark / draw any anomalies and show it to him. I am nearsighted with floaters. It seems like every time I look at it I get somewhat different result - nothing dramatic and I can tell the floaters affect it. Dr examined me though and said all good. I look at it for like 10 seconds each eye. Take care, Jim
That is correct. Print out and do off paper. One eye at a time. Pathology shows up right away . You can google abnormal amsler grids to see what they look like.