Ocular Hazards of Transscleral Laser Radiation

Surgical Treatment of Canine Glaucoma

“…15 Diode lasers have become the leading modality for CPC because of a more affordable cost, a better portability, and better absorption of their wavelength by melanin in the ciliary epithelium with less associated inflammation. [17][18][19][20][21][22] Endoscopic CPC (ECP) studies in veterinary ophthalmology are lacking, but studies comparing transscleral CPC (TSCP) and ECP in pediatric glaucoma did not show a significant difference in surgical outcome, both offering a moderate long-term IOP control (66.7% and 62% success respectively). 23 At present, diode laser glaucoma therapy, TSCP, and ECP are used for the treatment of primary and secondary glaucoma in canine, feline, and equine patients.…”

Thermooptical comparison of different approaches and lasers for laser treatment of intraocular tumors

“…2.Transscleral irradiation, when radiation propagates to tumor through sclera. In this case we should take into account optical properties of sclera [13,14]. Fig.…”

“…In the case of transscleral irradiation with wavelength in the range 1.0 -1.3 µm transmittance of sclera is about 50 -70% , especially under some pressure on sclera surface. Radiation reflectivity from sclera is equal 45 -25% [13,14]. In the case of non-or weakly pigmented tumors, for simplicity, we can take into account the absorption of radiation by blood and its absorption coefficient for 1.0 -1.3 µm is approximately equal 2 -10 cm −1 .…”

Zyklophotokoagulation – Vielfalt der Anwendungen

“…Die Geschichte der Zyklodestruktion ist älter als die der Laser-Zyklophotokoagulation. Diese wurde 1968/69 von Smith und Stein 1 als Weiterentwicklung der bis dato etablierten Zyklodestruktion durch Vereisung (Zyklokryokoagulation) vorgestellt, die wiederum aus der Hitzekoagulation (Zyklodiathermie in den 1930/40er-Jahren) hervorging. Durch die punktuelle Anwendung langwelligen Laserlichts sollte die Verödung des kammerwasserproduzierenden pigmentierten Ziliarkörperepithels besser reproduzierbar und sicherer werden.…”