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Office-Based Diagnosis of Demodex Using Smartphone

Kaya, Abdullah, M.D.; Gürdal, Canan, M.D.

doi: 10.1097/ICL.0000000000000507
Case Series

Abstract: Demodex is an important pathogen in ophthalmology. It is believed to cause a variety of eyelid and eyelash diseases. Currently, light microscopes are being used for imaging demodex. However, microscopes are not available everywhere. Also, it is not cost-effective to perform light microscopy in every case. In this case, we demonstrate a new method: imaging demodex using cell phone. A 90-diopter noncontact double aspheric lens was attached to the posterior camera of the smartphone with clear tape. An eyelash of a patient with blepharitis was removed. A video was taken using smartphone. There was a moving demodex parasite in the root of the eyelash. A clear video image could be taken using the smartphone. A smartphone and a 90-diopter lens are adequate for the imaging and diagnosis of demodex.

Department of Ophthalmology, Diskapi Yildirim Beyazit Education and Training Hospital, University of Health Sciences, Ankara, Turkey.

Address correspondence to Abdullah Kaya, M.D., Ziraat Mah. Sağlik Bilimleri Üniversitesi Dişkapi Yildirim Beyazit Eğitim Araştirma Hastanesi, Göz Hastaliklari Kliniği, Ankara 06280, Turkey; e-mail:

The authors have no funding or conflicts of interest to disclose.

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Accepted February 26, 2018

© 2018 Contact Lens Association of Ophthalmologists, Inc.