The Middle East doesn't contribute much in the way of science

The Middle East has very little scientific output/contribution. This report here states the total contribution for worldwide scientific literature from the Middle East is embarrassingly in a low single digit. The two countries cited having the largest scientific contributions are Iran and Turkey.

The Arabian, Persian and Turkish Middle East produces only 4% of the world's scientific literature but output is growing rapidly, exceeding Asia and Latin America in rate of increase.

I've not read the complete report, just a summary of it done by a person who has read it.

We all know that once upon a time, most sciences and ground-breaking work originate from the region currently known as the Middle East. Of course everyone wants to know why the 'Islamic' Sciences declined.

I don't think anyone can pinpoint to a single cause or reason. I'm guessing that wars, politics, social issues, lack of resources (wealth/money/investment), human exploitation, Islamic radicalism and other meaningless pursuit in life might have much to do with the decline.

Moving on.

My favorite medieval Muslim scientist is Ibn al-Haytham (also known as AlHazen). I believe he's probably one of the people who has made significant contribution but has gotten very little recognition or credit for his work. The Wikipedia article seems to be very extensive in regards to his scientific contribution

The article is also mentioning something very interesting about his theological background and a quote ascribe to him about why sometimes the scientists succeed or fails

His religious background, not that it matters, is either Sunni, Shia or Mutazilla. There's also an interesting quote ascribe to him about why sometimes the scientists succeed or fails

Truth is sought for its own sake ... Finding the truth is difficult, and the road to it is rough. For the truths are plunged in obscurity. ... God, however, has not preserved the scientist from error and has not safeguarded science from shortcomings and faults. If this had been the case, scientists would not have disagreed upon any point of science...[11]

Alhazen described his theology:

I constantly sought knowledge and truth, and it became my belief that for gaining access to the effulgence and closeness to God, there is no better way than that of searching for truth and knowledge.[113]