Encircling photothrombotic therapy for choroidal Greene melanoma using rose bengal

K. E. Winward, C. K. Dabbs, K. Olsen, B. D. Watson, E. Hernandez, C. DiBernando

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The photosensitive dye rose bengal in combination with an argon green laser (514.5 nm) operated at low power was evaluated in 49 rabbit eyes for treatment of experimental choroidal Greene melanoma by circumferential occlusion of the choroidal vasculature. The effects of no treatment, laser alone, and rose bengal alone were observed in 16 control eyes, all of which showed rapid tumor growth. Immediately following rose bengal injection, 3 minutes of continuous irradiation at 20.4 W/cm2 (500-μm spot, 40 mW) applied in three to four circumferential revolutions around the base of tumor nodules, without direct tumor irradiation, produced peripheral vascular occlusion and consequent tumor inhibition. Similar therapy at higher laser intensity (30.6 W/cm2) and with multiple retreatment sessions (28.0 to 30.6 W/cm2) resulted in increased tumor-inhibiting effect. Low-dose rose bengal phototherapy did not appear to directly damage ocular tissues adjacent to treatment areas; however, when multiple irradiation sessions were given within a short interval, an increased incidence of retinal detachment was observed.

Original languageEnglish
Pages (from-to)588-594
Number of pages7
JournalArchives of Ophthalmology
Volume108
Issue number4
StatePublished - Jan 1 1990
Externally publishedYes

Fingerprint

Rose Bengal
Melanoma
Lasers
Neoplasms
Therapeutics
Retreatment
Phototherapy
Argon
Retinal Detachment
Blood Vessels
Coloring Agents
Rabbits
Injections
Incidence
Growth

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Winward, K. E., Dabbs, C. K., Olsen, K., Watson, B. D., Hernandez, E., & DiBernando, C. (1990). Encircling photothrombotic therapy for choroidal Greene melanoma using rose bengal. Archives of Ophthalmology, 108(4), 588-594.

Encircling photothrombotic therapy for choroidal Greene melanoma using rose bengal. / Winward, K. E.; Dabbs, C. K.; Olsen, K.; Watson, B. D.; Hernandez, E.; DiBernando, C.

In: Archives of Ophthalmology, Vol. 108, No. 4, 01.01.1990, p. 588-594.

Research output: Contribution to journalArticle

Winward, KE, Dabbs, CK, Olsen, K, Watson, BD, Hernandez, E & DiBernando, C 1990, 'Encircling photothrombotic therapy for choroidal Greene melanoma using rose bengal', Archives of Ophthalmology, vol. 108, no. 4, pp. 588-594.
Winward KE, Dabbs CK, Olsen K, Watson BD, Hernandez E, DiBernando C. Encircling photothrombotic therapy for choroidal Greene melanoma using rose bengal. Archives of Ophthalmology. 1990 Jan 1;108(4):588-594.
Winward, K. E. ; Dabbs, C. K. ; Olsen, K. ; Watson, B. D. ; Hernandez, E. ; DiBernando, C. / Encircling photothrombotic therapy for choroidal Greene melanoma using rose bengal. In: Archives of Ophthalmology. 1990 ; Vol. 108, No. 4. pp. 588-594.
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