IT happens many a time that there are less clicks on your ads or the ctr is very low from adsense and you think what actually is going on.I also hate this situation and the persons who are fully dependent on the adsense income.

Can blindfolding the ads work ?

well if you ask me it does work ,it can increase clicks on your ads but again your website visitors will not love it rather they will soon shut the ads and resulting in no money from adsense.As it is obvious that google counts the time the ad clicker visits the targetted page and its reaction time over there.There are many little things which affects it like if the same person from same ip click on more than 1 or two ads on your site then each time ctr will be dropping.

Then how to manage to get traffic as well as high money income ?

It is not an easy task to manage income as it is fluctuating according to the budget of the advertisers,their keywords and the market they are choosing to invest in it,for example if you have a niche website with a targeted high paying keyword and then after sometime you realize that it is not paying much as it was paying at older time.It is all due to the fact that the thing which was niche at a time is not a niche any more as more and more people are making websites on the same subject which divides your income in to them.

I would suggest to go for making more selective and better branded websites you can go for either quantity or quality.I am with both as if google drops a ranking for one website other might help you to get out of the situation and help in making the desired sum of money.