Corneal foreign body injury during overnight orthokeratology lens wear: a case report.

PURPOSE: A case of asymptomatic corneal foreign body injury during orthokeratology lens wear is reported. CASE REPORT: An 8-year-old Chinese female myopic child with 21 months of overnight orthokeratology lens wear experienced a corneal foreign body injury without symptoms. The foreign body was removed and the eye treated with prophylactic antibiotic and ocular lubricant. Orthokeratology treatment was resumed 4 weeks after initial detection and management and a small residual corneal scar remained. DISCUSSION: The mechanisms, differential diagnoses, management and role of neural sensitivity in corneal foreign body injury during orthokeratology lens wear are discussed. Clinicians should be aware that subtle corneal insult may be without symptoms during prolonged overnight orthokeratology lens wear.

Bilateral juvenile open angle glaucoma in two Chinese children: case report.

Two cases of bilateral juvenile open angle glaucoma (JOAG) in a four-year-old Chinese boy and a 12-year-old Chinese girl are reported. Applanation tonometry revealed elevated intraocular pressure (IOP) in both eyes. The patients were asymptomatic and bilateral open angle glaucoma was confirmed by a paediatric ophthalmologist. One patient had surgery (trabeculectomy), while the other was treated with topical medication. The early detection and treatment of JOAG is essential for the preservation of vision. Tonometry must be performed as part of a routine eye examination regardless of the age of the patient.

Central corneal epitheliopathy in a long-term, overnight orthokeratology lens wearer: a case report.

PURPOSE: The purpose of this study is to report an unusual case of central corneal epitheliopathy (CCE) in a long-term orthokeratology lens wearer. CASE REPORT: A single observational case report of a 12-year-old Chinese female myope with 3(1/2) years' experience in wearing orthokeratology lenses overnight was diagnosed with a CCE lesion during her regular orthokeratology aftercare consultation. The patient was asymptomatic. Trace or almost negative fluorescein staining was observed over the particular lesion area and, according to the clinical features of the corneal lesion, was thought to be a partially formed "dellen." The lesion healed after the use of the orthokeratology lenses was suspended for 4 months and reappeared when the patient resumed wearing the lenses. Close monitoring of the corneal condition was needed on this patient, and permanent discontinuation of the orthokeratology procedures will be considered if the signs and symptoms of the lesion worsen. DISCUSSION: The etiology, clinical management and the possible differential diagnosis of the central cornea "dellen" are discussed. CONCLUSION: A central corneal "dellen" may be associated with long-term, overnight use of orthokeratology lenses.