Scanning laser ophthalmoscope optimized for retinal microphotocoagulation

Frans J. Van de Velde M.D.

doi:10.1117/12.339151

4 February 1999 Scanning laser ophthalmoscope optimized for retinal microphotocoagulation

Frans J. Van de Velde M.D.

Proceedings Volume 3564, Medical Applications of Lasers in Dermatology, Cardiology, Ophthalmology, and Dentistry II; (1999) https://doi.org/10.1117/12.339151
Event: BiOS Europe '98, 1998, Stockholm, Sweden

Abstract

The confocal scanning laser ophthalmoscope, cSLO, can be used for microphotocoagulation of the retina. For this purpose, external and non-scanning therapeutic laser sources are coupled with the instrument. An opto-mechanical coupling device is calibrated to obtain the same Maxwellian view entrance location in the eye for both scanning and external lasers. Two separate but synchronized confocal detection pathways are capable of monitoring the progression of thermal laser applications on the retina. Real-time image processing is further used to indicate the position and size of the aiming beam on the retina. This aiming beam can be pulsed in anti-aliased fashion with regard to its confocal detection, to allow for higher intensities. Its polarization is exploited to sharply reduce corneal reflections. MInimal optical distribution of the therapeutic laser beam, full documentation of application characteristics, simultaneous microperimetry, infra-red and angiographic imaging are useful features to guide microphotocoagulation.

Citation Download Citation

Frans J. Van de Velde M.D. "Scanning laser ophthalmoscope optimized for retinal microphotocoagulation", Proc. SPIE 3564, Medical Applications of Lasers in Dermatology, Cardiology, Ophthalmology, and Dentistry II, (4 February 1999); https://doi.org/10.1117/12.339151

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KEYWORDS

Laser therapeutics

Retina

Confocal microscopy

Scanning laser ophthalmoscopes

Eye

Sensors

Beam splitters

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