Yes you can blink while doing the test. Please wear your glasses while performing the test. Consult sos

To use the Amsler grid, follow these steps once a day, every day: Wearing any glasses you normally use to read, hold the grid 12 to 15 inches away from your face in good light. Cover one eye. Look directly at the center dot with your uncovered eye and keep your eye focused on it. While looking directly at the center dot, notice in your side vision if all grid lines look straight or if any lines or areas look blurry, wavy, dark or blank. You have to do this test with glass on And blinking is allowed Only small black spot may be normal But if you have large black field or wavy lines are abnormal If you have any doubt, please consult retina specialist for further examination

You can blink during an Amsler Test It is supposed to be done with glasses on, and with one eye closed. If there are parts of amsler tests missing (large fixed black AREAS not spots) or the amsler grid lines are wavy, that's abnormal. https://youtu.be/k_y06QCLUz4 How to perform Amslers ☝️ For any doubt. Kindly get an OCT Macula Get an online consultation to address all your concerns