Step 1: Go to Settings > Accessibility to configure options to make iPhone easier to use based on your needs.
Step 2: Tap Display & Text Size and increase text size for easier reading.
Step 3: Enable Zoom under Magnification to magnify portions of the screen.
Step 4: Reduce Motion under Motion can help minimize nausea from screen movement.
Step 5: Tap Touch and turn on AssistiveTouch to use adaptive accessories.