Ng Larry Hou-Yan
The Hong Kong Polytechnic University, School of Optometry, Hung Hom, Kowloon, Hong Kong, China.
Cont Lens Anterior Eye. 2008 Jun;31(3):158-60. doi: 10.1016/j.clae.2008.01.006. Epub 2008 Mar 11.
A case of asymptomatic corneal foreign body injury during orthokeratology lens wear is reported.
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.
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.
报告1例角膜塑形镜佩戴期间无症状角膜异物损伤病例。
一名8岁中国近视女童，夜间佩戴角膜塑形镜21个月，发生无症状角膜异物损伤。取出异物后，眼部使用预防性抗生素和眼用润滑剂治疗。在最初发现和处理4周后恢复角膜塑形镜治疗，角膜仍残留小瘢痕。
探讨了角膜塑形镜佩戴期间角膜异物损伤的机制、鉴别诊断、处理及神经敏感性的作用。临床医生应意识到，在长期夜间佩戴角膜塑形镜期间，细微的角膜损伤可能无症状。
