Great entry! I briefly had a similar idea when they revealed the theme but I wasn't sure how to design the game play. Making a 'papers please' type of game was a really great idea.
Might be cool to add some animations. Maybe the characters could blink periodically - you could even blank out the eye chart in sync with the blinking. Maybe also putting on the glasses at the end, or getting mad when you get it wrong.
Overall I love the idea and I could really see this being fleshed out into a full game.