УДК: 534.615, 535.015, 617.7, 617.735

Real-time optoacoustic monitoring of the temperature of the retina during laser therapy

Serebryakov, V.A., Boyko, E.V., Yan, A.V.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Серебряков В.А., Бойко Э.В., Ян А.В. Оптико-акустический мониторинг температуры сетчатки при лазерной терапии в режиме реального времени // Оптический журнал. 2014. Т. 81. № 6. С. 14–26.

Serebryakov V.A., Boyko E.V., Yan A.V. Real-time optoacoustic monitoring of the temperature of the retina during laser therapy [in Russian] // Opticheskii Zhurnal. 2014. V. 81. № 6. P. 14–26.

For citation (Journal of Optical Technology):

V. A. Serebryakov, É. V. Boĭko, and A. V. Yan, "Real-time optoacoustic monitoring of the temperature of the retina during laser therapy," Journal of Optical Technology. 81(6), 312-321 (2014). https://doi.org/10.1364/JOT.81.000312

Abstract:

Laser coagulation of the retina carries risk of damaging the neuroretina because of variation of the beam power and of the local pigmentation of the retinal pigmented epithelium and the choroid. The degree of coagulation depends on the induced temperature rise and the exposure time. Laser retinotherapy with optoacoustic monitoring of the temperature provides reproducible ophthalmologically invisible (subthreshold) damage of the retina in a wide range of laser power, regardless of local changes of the tissue structure. Optoacoustic temperature measurements are based on the excitation of a pressure wave in the retinal tissue by repeated low-energy probe laser pulses. The amplitude of the pressure signal, which can be detected by means of an acoustic transducer incorporated in a laser contact lens, correlates with the temperature of the tissue. This paper discusses promising directions of the use in clinical practice of real-time optoacoustic temperature monitoring of the retina during laser therapy in various irradiation regimes.

Keywords:

photocoagulator, retina, optoacoustic temperature measurements, real time mode, probing laser pulse

OCIS codes: 170.1020, 170.1065, 170.3890, 190.4870

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