Histologic effect of semiconductor diode laser transscleral cyclophotocoagulation on the normal equine eye

Morreale, Raymond J.; Wilkie, David A.; Gemensky-Metzler, Anne J.; Weisbrode, Steven E.; Willis, Michelle A.

doi:10.1111/j.1463-5224.2007.00514.x

Cited by 19 publications

(43 citation statements)

References 27 publications

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“…Diode laser TSCP was performed under general anesthesia using a semiconductor diode laser with an 810 nm G‐probe (Iridex DioVet®, Mountain View, CA, USA). Laser application sites were 4 mm posterior to the limbus in the dorsotemporal and ventrotemporal quadrants, avoiding the 3:00 and 9:00 positions, consistent with previous studies 5,6 . Laser treatment commenced with an initial energy of 1500 mW for 1500 ms as recommended by Morreale et al .…”

Section: Methodssupporting

confidence: 69%

“…Laser treatment commenced with an initial energy of 1500 mW for 1500 ms as recommended by Morreale et al . and settings were adjusted to achieve audible popping at 25% of sites treated 6 …”

Section: Methodsmentioning

confidence: 99%

“…Sites of laser probe application in horses for optimal destruction of the ciliary epithelium with minimal damage to non‐target tissue have been previously described 5 . Diode laser settings for desired histologic effect in equine globes have also been reported 6 . However, descriptions of the outcome of laser surgery for equine glaucoma have been limited to reports on Nd:YAG laser TSCP 1,7 .…”

Section: Introductionmentioning

confidence: 99%

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Semiconductor diode laser transscleral cyclophotocoagulation for the treatment of glaucoma in horses: a retrospective study of 42 eyes

Annear

Wilkie

Gemensky-Metzler

2010

Veterinary Ophthalmology

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Section: Methodssupporting

confidence: 69%

“…Laser treatment commenced with an initial energy of 1500 mW for 1500 ms as recommended by Morreale et al . and settings were adjusted to achieve audible popping at 25% of sites treated 6 …”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Semiconductor diode laser transscleral cyclophotocoagulation for the treatment of glaucoma in horses: a retrospective study of 42 eyes

Annear

Wilkie

Gemensky-Metzler

2010

Veterinary Ophthalmology

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“…TSCP induces coagulation necrosis of the nonpigmented ciliary epithelium, which reduces aqueous humour production and thus IOP (Morreale et al . ; Cavens et al . ; Gemensky‐Metzler et al .…”

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confidence: 99%

A promising surgical approach to equine glaucoma

Lassaline

2015

Equine Veterinary Education

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Summary The preceding case report by Wilson et al. (2015) describes the surgical placement of a Baerveldt glaucoma shunt in a glaucomatous equine eye that had been refractory to aggressive medical and repeated surgical therapies yet maintained functional vision. Shunt placement surgery successfully maintained vision and intraocular pressure in the normal range in the affected eye. This is the first report of long‐term successful glaucoma filtration surgery in a horse. Glaucoma shunt placement shows promise for maintaining vision and comfort in equine eyes affected with glaucoma. There is much to be learned in terms of the most appropriate implant type for the equine eye, the risk of complications such as ocular hypotony or tube fibrosis, and the utility of combination therapy with transcleral cyclophotocoagulation and implant placement, but with the report of one case in which gonioimplant placement has been associated with intraocular pressure control for over one year, further investigations appear warranted. This case provides a glimmer of hope for long‐term treatment of a painful, blinding disease that has traditionally carried a poor prognosis in horses.

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“…Photocoagulation, not photodisruption, is achieved with these settings [21] . Some surgeons treat only a small number of spots at a given time and repeat the treatment as needed to titrate IOP to the target pressure of < 20 mm Hg.…”

Section: Transscleral Laser Cyclophotocoagulationmentioning

confidence: 99%

The use of lasers in veterinary ophthalmology: Recommendations based on literature

Spiess

2012

Photonics &Amp; Lasers in Medicine

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Lasers are routinely used in veterinary ophthalmology for the treatment of a number of ophthalmic conditions and diseases. In veterinary ophthalmology gas lasers and semiconductor lasers are primarily used. The most common indications for the use of diode and carbon dioxide lasers are presented and discussed. Diode lasers are primarily used in the treatment of glaucoma, either by transscleral cyclophotocoagulation or by endoscopic cyclophotocoagulation. Other indications are various forms of retinal detachments, as well as pigmented neoplasms of the uvea. An emerging field in veterinary ophthalmology is photodynamic therapy of periocular tumors. Carbon dioxide lasers are used for pars plana vitrectomies and surgical excision of ocular tumors. AbstractLasers are routinely used in veterinary ophthalmology for the treatment of a number of ophthalmic conditions and diseases. In veterinary ophthalmology, gas lasers (CO 2 lasers) and semiconductor lasers (diode lasers) are used primarily, but the therapy of posterior capsular opacifi cation with the Nd:YAG laser has also been described. This paper presents and discusses the most common indications for the use of the diode and CO 2 lasers. Diode lasers are mainly used in the treatment of glaucoma, either by transscleral cyclophotocoagulation or by endoscopic cyclophotocoagulation. Other indications are various forms of retinal detachments, as well as pigmented neoplasms of the uvea. An emerging fi eld in veterinary ophthalmology using diode lasers is photodynamic therapy of periocular tumors. CO 2 lasers are used for pars plana vitrectomies and surgical excision of ocular tumors.Keywords: diode laser; carbon dioxide laser; ophthalmic surgery; animal . ZusammenfassungLaser werden in der Veterin ä r-Ophthalmologie zur Behandlung unterschiedlicher Augenver ä nderungen und -erkrankungen regelm ä ß ig eingesetzt. Es kommen haupts ä chlich Gas (CO 2 )-und Halbleiterlaser (Diodenlaser) zur Anwendung, aber auch der Nd:YAG-Laser wird eingesetzt, bspw. zur Therapie des Nachstars (posterior capsular opacifi cation, PCO). Im vorliegenden Artikel werden die h ä ufi gsten Indikationen zur Verwendung von Dioden-und CO 2 -Lasern vorgestellt und diskutiert. Diodenlaser werden haupts ä chlich zur Therapie des Glaukoms eingesetzt, sei es mittels transskleraler oder mittels endoskopischer Zyklophotokoagulation. Andere Indikationen sind verschiedene Formen der Netzhautabl ö sung sowie pigmentierte Tumoren der Uvea. Ein neu aufkommendes Einsatzgebiet f ü r Diodenlaser ist die photodynamische Therapie von periokul ä ren Tumoren. CO 2 -Laser werden in erster Linie f ü r die Pars-plana-Vitrektomie beim Pferd und zur Exzision von Tumoren verwendet.Schl ü sselw ö rter: Diodenlaser; CO 2 -Laser; Augenchirurgie; Tier.

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Histologic effect of semiconductor diode laser transscleral cyclophotocoagulation on the normal equine eye

Cited by 19 publications

References 27 publications

Semiconductor diode laser transscleral cyclophotocoagulation for the treatment of glaucoma in horses: a retrospective study of 42 eyes

Semiconductor diode laser transscleral cyclophotocoagulation for the treatment of glaucoma in horses: a retrospective study of 42 eyes

A promising surgical approach to equine glaucoma

The use of lasers in veterinary ophthalmology: Recommendations based on literature

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