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Updated: Jul 19, 2026
Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
Published on: August 4, 2018
Real-time imaging of transscleral diode laser cyclophotocoagulation by optical coherence tomography
H Hoerauf1, M Müller, G Hüttmann
1Department of Ophthalmology, Medical University Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany. hanshoerauf@yahoo.com
Purpose:
To present optical coherence tomography (OCT) for real-time imaging of cyclophotocoagulation effects.
Methods:
In a pilot study, real-time transscleral OCT images were generated during diode laser cyclophotocoagulation in four eyes of four patients suffering from uncontrolled glaucoma using a specially designed contact applicator containing the OCT fiber, a focussing fiber optic and the fiber of the diode laser.
Results:
When the contact system was used, two layers could be differentiated: a superficial thick hyperreflective complex representing conjunctiva, Tenon's capsule, episclera and sclera, and a thinner hyporeflective layer representing the ciliary body. During cyclophotocoagulation, real-time OCT showed a clear and sudden thickening of the ciliary body in the treated area.
Conclusion:
This new OCT device represents a first step towards visual, real-time imaging of cyclophotocoagulation. After further adaptation of the delivery system, further trials are needed to correlate OCT findings with aqueous production and intraocular pressure.
