Evaluation of ocular and periocular elasticity after panretinal photocoagulation: an ultrasonic elastography study.
OBJECTIVE
Our aim was to evaluate the effects of argon laser panretinal photocoagulation on ocular and periocular ultrasound elastography values in diabetic retinopathy. Also, we wanted to test the applicability of ultrasound elastography in ophthalmological practice.


METHODS
This is a prospective cross-sectional study comparing proliferative diabetic retinopathy patients (study group) who had undergone panretinal photocoagulation and non-proliferative diabetic retinopathy patients (control group). There were 15 participants (11 males and 4 females) in the study group and 16 participants (10 males and 6 females) in the control group. The ultrasound elastography measurements were done with the LOGİQ E9 Ultrasound Elastography.


RESULTS
The elastography values of vitreous, retrobulbar fat, and optic nerve were similar in both groups (p > 0.05). But, the mean retina-choroid-scleral elastography value of the study group was higher than that of the control group, which indicates increased hardness (p = 0.002).


CONCLUSIONS
The argon laser panretinal photocoagulation decreases elasticity of the retina-choroid-sclera complex. The ultrasound elastography technique, that gives reproducible and consistent values, could be used effectively in ophthalmological practice.
Department of Ophthalmology and.
Gökhan
G
Pekel
Kadir
K
Ağladıoğlu
Semra
S
Acer
Ramazan
R
Yağcı
Alper
A
Kaşıkçı
D000368:Aged; D000369:Aged, 80 and over; D002829:Choroid / Q000503:physiopathology; D003430:Cross-Sectional Studies; D003930:Diabetic Retinopathy / Q000503:physiopathology* / Q000601:surgery; D004548:Elasticity / Q000502:physiology*; D054459:Elasticity Imaging Techniques; D005260:Female; D006801:Humans; D017075:Laser Coagulation; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012160:Retina / Q000503:physiopathology*; D015861:Retinal Neovascularization / Q000503:physiopathology* / Q000601:surgery; D012590:Sclera / Q000503:physiopathology*
Diabetes mellitus; diabetic retinopathy; ocular elasticity; panretinal photocoagulation; ultrasound elastography