J Korean Ophthalmol Soc > Volume 60(12); 2019 > Article
Journal of the Korean Ophthalmological Society 2019;60(12):1312-1317.
DOI: https://doi.org/10.3341/jkos.2019.60.12.1312    Published online December 15, 2019.
Diagnostic Utility of Polymerase Chain Reaction for Acanthamoeba in Contact Lens-related Keratitis with Epithelial Defects.
Min Chae Kang, Dong Hui Lim, Hee Jae Huh, In Young Yoo, Tae Young Chung
1Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. ldhlse@gmail.com
2Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
각막상피 결손을 동반한 콘택트렌즈 연관 각막염에서 아칸토아메바 중합효소연쇄반응의 진단적 유용성
강민채1 · 임동희1 · 허희재2 · 유인영2 · 정태영1
성균관대학교 의과대학 삼성서울병원 안과학교실1, 성균관대학교 의과대학 삼성서울병원 진단검사의학과2
Correspondence:  Dong Hui Lim,
Email: ldhlse@gmail.com
Received: 30 May 2019   • Revised: 26 June 2019   • Accepted: 6 December 2019
Abstract
PURPOSE
To report contact lens related Acanthamoeba keratitis with corneal epithelial defect cases which were diagnosed using polymerase chain reaction (PCR). CASE SUMMARY: A 51-year-old male visited our hospital for loss of visual acuity and ocular pain in both eyes. He had been wearing therapeutic contact lenses in both eyes for 4 days prior to his visit, and showed a corneal epithelial defect with corneal edema in both eyes. The corneal edema did not improve after treatment for bacterial and herpes keratitis, so we conducted PCR for Acanthamoeba using the aqueous fluid in the anterior chamber, which showed positive results. A 32-year-old male complained of low visual acuity and ocular pain in both eyes. He had a history of corneal erosion. He had been wearing therapeutic contact lenses in both eyes for 3 days prior to his visit for a corneal epithelial defect. We suspected recurrent corneal erosion syndrome, but PCR for Acanthamoeba of the corneal scraping showed positive results. A 26-year-old female visited our hospital for ocular pain, and discomfort in her left eye. Because of severe dry eye, she had been wearing therapeutic contact lenses for 6 weeks prior to her visit. Her left eye showed corneal infiltration and epithelial defects. The left cornea scraping was positive for bacteria, and PCR for Acanthamoeba also showed positive results. CONCLUSIONS: Clinicians should consider the use of PCR for the early diagnosis of Acanthamoeba keratitis in contact lens-related keratitis with corneal epithelial defects.
Key Words: Acanthamoeba keratitis;Contact lenses;Epithelial defect;Polymerase chain reaction


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