Well, generally speaking, weight loss can have effects on your sights. So you should be careful when you want to lose weight. And you should know that rapid weight loss and weight gain can affect your sugar levels, and then, when the sugar level decreases, it can directly affect your vision sight. Also, you should know that weight loss can lead to your eye bags. As we know that under eye bags are the result of accumulated fat in the eye area. When you have weight loss diet, you will eat less. In this way, your body will intake less nutrients like the vitamins and water. Finally, that has an effect on your eyes, and causes the eye bags. To treat the bags, you should eat foods high in antioxidant such as green leafy vegetables, artichoke heart, blueberry, strawberry, raspberry, and walnut. Anyway, weight loss can be harm to your health. So just be careful about it.