Agreement between two Meibomian gland imaging technologies

Session Details

Session Title: Presented Poster Session: Infection & Imaging

Venue: Poster Village: Pod 2

First Author: : H.Rashed EGYPT

Co Author(s): :    M. Abdel Rahman   A. Hegazy   M. Ismail                 

Abstract Details

Purpose:

To compare the HD Analyzer (Visiometrics, Terrassa, Spain) and the me-check device (Eye-Light Espansione group, Bologna, Italy) in evaluation of meibomian glands (MGs) and assessing the relation of MG morphologic changes to the glandular atrophy.

Setting:

Ain Shams University, Al Azhar University, Nour El Hayat Hospital

Methods:

The study was done on 82 patients (32 men, 50 women). Meibomian gland imaging was done by both the CCD camera of the HD Analyzer (HDA) and infra-red camera of the me-check device. All patients answered the Standard Patient Evaluation of Eye Dryness (SPEED) validated questionnaire. Areas of MG drop-out (partial or complete loss of MGs) and microscopic changes (i.e. shortening, distortion, segmentation and entanglement) were evaluated and MG affection was graded to be of one of 4 degrees according to the percentage of morphologic changes. Degree 1 0%-25%, degree 2 25%-50%, degree 3 50%-75%, and degree 4 75%-100%.

Results:

The image quality of the HDA was superior to that of the me-check and was more sensitive in detecting segmentation, but there was agreement in all studied morphological features (Cohen kappa coefficient = 0.88; p<0.001) and consequent grading. According to the HDA images, degree 1 was present in 30 subjects (36.59%), degree 2 in 24 subjects (29.27%), degree 3 in 21 subjects (25.61%) and degree 4 in 7 subjects (8.54%). According to the me-check images these percentages were 35.37% of subjects, degree 2 in 30.49%, degree 3 in 28.05% and degree 4 in 6.1% respectively.

Conclusions:

In spite of the higher image quality attained by the HDA, there was close agreement between both meibographic techniques.

Financial Disclosure:

None