Grate the carrots.
Squeeze out the juice from the lemon, chop the parsley.
Mix them all with ice. Add the spices.
Transfer to a jar and leave in the fridge for 1 week.
After 1 week, start taking 1 tbsp 30 min. before meals. Starting from the very first week, you'll notice an improvement in your vision.
The recipe is also suitable for boosting the immune system. To alter it to that end, simply add 1 tsp ginger root.