Indeed, our affected family members showed diseases limited to the retina and kidney, albeit to a different extent. Previous work reported several mutations in the IQCB1/NPHP5 gene [7,22,24]. However, to the best of our knowledge, this mutation has not been reported previously. Moreover, this is the first report ofIQCB1/NPHP5 gene mutation found in the Arabian Peninsula. The implication of this finding was discussed with the family members, who werecooperative and understanding of the preventive measures against recurrence of the disease in their future generations; hence a related couple approached the clinic requesting premarital genetic testing.