Allah created the universe and formed it according to His own attributes. Everything that exists belongs to Him. All beauties and subtleties are manifestations of His wisdom.
What about this, is this a manifestation of Allah's wisdom?

Like all other beings, we come into being by His will. Each person, once a lump of flesh in his or her mother's womb, is born, grows up, and manifests Allah's artistry with his or her beautiful face.

What about this?

Indeed Allah relates humanity's superiority, as follows:

O man! What has deluded you in respect of your Noble Lord? He Who created you, formed you, proportioned you, and assembled you in whatever way He willed. (Surat al-Infitar, 82:6-8)

                         Humanity's superiority? And assembled bodies "whatever way he willed"?

Yet, although people can think, many of them never wonder how they came into being and who is responsible for the countless blessings surrounding them. The Qur'an asks:

Has man ever known a point of time when he was not something remembered? We created man from a mingled drop to test him, and made him able to hear and see. We guided him on the Way, whether he is thankful or unthankful. (Surat al-Insan, 76:1-3)

So why deaf and blind people?