Diagnosis of Nephropathic Cystinosis in a Child During Routine Eye Exam

Area of Science:

• Ophthalmology
• Pediatrics
• Genetics

Background:

• Nephropathic cystinosis (NC) is a rare genetic disorder.
• Early diagnosis is crucial for managing NC and preventing complications.
• Ocular manifestations are common in NC.

Purpose of the Study:

• To report a case of asymptomatic nephropathic cystinosis diagnosed via ophthalmological findings.
• To emphasize the role of routine eye examinations in early disease detection.

Main Methods:

• Ophthalmological examination of a 7-year-old patient.
• Identification of pathognomonic corneal crystalline opacities.
• Subsequent diagnostic workup for nephropathic cystinosis.

Main Results:

• The patient was diagnosed with asymptomatic nephropathic cystinosis.
• Corneal white crystalline opacities were the initial diagnostic clue.

Conclusions:

• Ophthalmological screening can lead to the early diagnosis of asymptomatic nephropathic cystinosis.
• Corneal crystalline deposits are a key indicator for further investigation of NC.