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Changes in ocular surface temperature and blood flow in phlyctenular keratitis Tomomi Sugimoto 1,2 , Takashi Itokawa 1 , Sayaka Sumazaki 1 , Kousei Suzuki 1 , Koji Kakisu 1 , Yukinobu Okajima 1,3 , Takashi Suzuki 1,4 , Yuichi Hori 1 1Department of Ophthalmology, Toho University Faculty of Medicine 2Department of Ophthalmology, Tokyo Rosai Hospital 3Tsunashima Eye Clinic 4Ishizuchi Eye Clinic pp.846-850
Published Date 2025/7/15
DOI https://doi.org/10.11477/mf.037055790790070846
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Abstract Purpose:Phlyctenular keratitis predominantly affects young women and is characterized by white nodular lesions on the cornea accompanied by vascular invasion. The condition is believed to result from an immune response to bacterial proteins in the meibomian glands. Here, we report time-dependent changes in corneal vascular blood flow, measured using laser speckle flowgraphy(LSFG), during the course of treatment in a patient with phlyctenular keratitis.

Case:A 16-year-old girl presented to our department with recurrent, treatment-resistant keratoconjunctivitis. Slit lamp examination revealed a white nodule and vascular invasion in the paracentral region of the right cornea, leading to a diagnosis of phlyctenular keratitis. Treatment was initiated with topical azithromycin and oral clarithromycin. After 2 weeks, the extent of vascular invasion decreased, and inflammatory signs improved. Rebamipide eye drops and 0.1% fluorometholone eye drops were subsequently added, resulting in the disappearance of the invaded vessels and scar formation after 4 weeks. During treatment,- blood flow in the invaded vessels surrounding the nodule and ocular surface temperature were measured using an anterior segment LSFG(LSFG-OAS) and a thermographer(TG-1000), respectiverly. The mean blur rate(MBR) of blood flow in the corneal invaded vessels decreased from 695.3 to 317.1, while corneal surface temperature decreased from 35.4℃ to 34.0℃.

Conclusion:We successfully measured changes in blood flow and ocular surface temperature before and after treatment for phlyctenular keratitis, a condition characterized by abnormal vascularization of the cornea. These parameters may serve as valuable indicators for the quantitative evaluation of abnormal corneal vascularization and the degree of ocular surface inflammation.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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