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CASE REPORT
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Deep phototherapeutic keratectomy for Schnyder corneal dystrophy


1 Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
2 Department of Ophthalmology, Changhua Christian Hospital, Changhua, Taiwan
3 Department of Ophthalmology, Changhua Christian Hospital, Changhua; Champion Eye Clinic, Kaohsiung, Taiwan

Correspondence Address:
Chang-Ping Lin,
Champion Eye Clinic, No. 267, BO'AI 1st Road, Sanmin Dist., Kaohsiung City 80743
Taiwan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tjo.tjo_13_22

We report a case of Schnyder corneal dystrophy (SCD) treated with deep phototherapeutic keratectomy (PTK). A 33-year-old man presented with a 5-year history of blurred vision and corneal haze in both eyes. Slit-lamp examination revealed needle-like subepithelial crystalline depositions and prominent arcus lipoides bilaterally. Similar clinical findings were observed in the patient's father. A diagnosis of SCD was made on the basis of the clinical presentation. PTK was performed using a multizone, multipass, and shoot and check technique with the WaveLight EX500 excimer laser. After 22 months of follow-up, the best-corrected visual acuity had increased from 0.5 to 0.9 in the right eye and from 0.3 to 0.9 in the left eye. SCD is rare but has a unique ocular presentation, which facilitates the diagnosis. PTK can increase patients' visual acuity and eliminate the need for aggressive management through penetrating keratoplasty or deep anterior lamellar keratoplasty.


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    -  Chen CA
    -  Tung HF
    -  Liu YL
    -  Lin CP
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