Q. An 8-year-old boy is brought to the emergency room by his mother for passing blood in the urine since morning. He doesn’t have abdominal pain, burning micturition, or urinary urgency. His mother says that he recently recovered from a fever and sore throat a week ago. His medical history shows that he was diagnosed with bilateral sensorineural deafness at the age of 4. He has been using eyeglasses for blurred vision for the past 2 years and he has changed them twice since then due to changes in visual acuity. Family history shows that his father is regularly followed in the nephrology unit for persistent microscopic hematuria, discovered on routine urine analysis during an annual examination.
His temperature is 98.6 degrees F (37 degrees C), pulse is 88/min, respirations are 12/min, and blood pressure is 110/80 mm Hg. On slit lamp examination, he has bilateral anterior lenticonus with corneal opacities. The rest of the physical examination is normal.
Based on the above clinical signs and symptoms, what is the most likely diagnosis for this patient?