Fascinating discussion. It raises so many issues...
Why are most religion so anti-human? Anything that is somewhat pleasurable and normal is seen as evil and sin.. It's just ridiculous. Why would you want to blur your eyesight intentionally just so you won't stare at tits?
The perspective you describe originates from the idea —which one or two others have hinted at— that if a desire comes naturally, it is OK. And if people find it pleasurable it is good.
But that is just the perfect recipe for hedonism:
Hedonism is a school of thought that argues that pleasure is the only intrinsic good. In very simple terms, a hedonist strives to maximize net pleasure (pleasure minus pain). In contrast to the philosophy, the commonplace use of the term hedonism often refers to a lifestyle oriented only towards selfish momentary pleasures.
Many, and indeed most, (perhaps nearly all) thinking individuals of non-religious persuasion both aspire to and attain higher aims in life. Even a simple awareness of the needs of others leads most people to forego natural inclination, and inconvenience themselves for the sake of improving the quality of life of those around them. Many have developed a particularly sensitive moral compass that drives them to put themselves at risk of personal loss, and even harm, in order to improve the lives of others. Médecins Sans Frontières springs to mind, along with countless others. While perhaps some see no need to bridle sexual desire, others have put personal 'satisfaction' further down their list of priorities. Such a way of life is not only human, but reflects a moral compass that is more highly developed, and therefore an example to us all of what humans can attain.
In reality virtually everyone denies themselves to some extent, and for good reason. What would you say if the next person you met stood staring at your partner's breasts, and then asked her to go home with him? And if society as a whole functioned in such a way, without restraint? It is therefore not at all anti-human to say that some things that seem inherently pleasurable are morally wrong, and even evil. And that is on a secular level alone!
Those with a Judeo-Christian system of ethics believe that the Creator desires that we humans live in the light of the moral standards he has set. This is no more anti-human than the ethical values of secular people outlined above; rather it adds a layer to the moral compass such that we are answerable to him for our conduct. Believing that the Designer and Creator is aware not only of our actions, but also our thoughts and motivations, we seek to address our shortcomings in every sphere, including the sexual, as an act of worship.
There is always the danger that those who aspire to control inner desires in order to be at peace with their Maker begin to see themselves as superior to those without faith. The Christian belief is that Christ alone lived a life of moral perfection, fulfilling every law and commandment in deed and in thought, flawlessly, including the two greatest commandments, to love God with all one's heart, soul, mind and strength, and to love others as oneself, and that he did it on our behalf, in our place (before giving himself as a sacrificial offering to God without blemish, so that our failings could be covered).
Others aspire to attain some level of perfection in God's sight through personal effort. Those who would consider using these glasses clearly come under that category, and I cannot belittle their zeal. I do not believe it leads to the desired outcome because it does not deal with the secret love of lust that is contrary to God's standard, which is present within all of us until Christ transforms the heart such that it loves what God loves and detests what God detests at the very deepest level.
In reality it is an urban myth that faith is contrary to pleasure. There is nothing more wholesome, and deeply pleasurable than a good conscience. And not only sexual desire, but sexual fulfilment were purposely designed by the Creator Himself for our own good, to be enjoyed with thanks within the limits He has set. Lifelong commitment to one's spouse creates something beautiful and fulfilling beyond what will ever be experienced by those who prefer not to restrain lust. To those who reject the design, it is their loss!
Self-control and holy matrimony are fulfilling and pleasurable. And eminently human.