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Two patients with severe corneal disease in KID syndrome
Shozo Sonoda1, Eisuke Uchino, Koh-Hei Sonoda
1Department of Ophthalmology, Kagoshima University, Japan. shou@m3.kufm.kagoshima-u.ac.jp
Insights
Two Japanese patients with Keratitis, Ichthyosis, and Deafness (KID) syndrome experienced severe corneal issues. Topical eye drops effectively managed their corneal conditions, suggesting a treatable ocular surface regulation disorder.
Area of Science:
- Ophthalmology
- Genetics
- Dermatology
Background:
- Keratitis, Ichthyosis, and Deafness (KID) syndrome is a rare genetic disorder.
- Patients with KID syndrome often present with severe ocular surface abnormalities.
Observation:
- Two independent Japanese patients with KID syndrome presented with significant corneal disease.
- Patient 1, a 5-year-old boy, had diffuse superficial punctate keratopathy and neovascularization.
- Patient 2, a 64-year-old man, exhibited stromal keratitis and corneal ulceration.
Findings:
- Both patients showed diminished tear production and reduced areas of palisades of Vogt.
- Genetic analysis revealed a GJB2 gene mutation in Patient 1 but not in Patient 2.
- Corneal conditions were effectively managed with topical eye drops, including corticosteroids and antibiotics.
Implications:
- The ocular surface regulating system may be impaired in KID syndrome, leading to corneal complications.
- Topical ocular therapies can effectively manage corneal manifestations in KID syndrome.
- Further research into the genetic and molecular basis of ocular involvement in KID syndrome is warranted.
Purpose:
To report two independent Japanese patients with keratitis, ichthyosis, and deafness (KID) syndrome and severe corneal disorder.
Design:
Observational case reports.
Methods:
Clinical observation of a 5-year-old boy (Patient 1) and a 64-year-old man (Patient 2) with KID syndrome, presenting prominent corneal diseases. Molecular genetic assessment of the GJB2 gene encoding connexin-26 was performed.
Results:
Patient 1 had bilateral diffuse superficial punctuate keratopathy with severe corneal neovascularization. He had a missense mutation of the GJB2 gene. Patient 2 had bilateral corneal stromal keratitis and right corneal ulceration with rupture of the Descemet membrane. He did not have any pathologic mutation of the GJB2 gene. The area of palisades of Vogt was diminished and tear production reduced in both patients. Topical eye drops, and corticosteroid or antibiotics, respectively, relieved them effectively.
Conclusion:
The impaired ocular surface regulating system might be a cause of corneal disease in KID syndrome and it can be treated by eye drops.
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