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Clinical Comparison of Xenon-Arc and Laser Photocoagulation of Retinal Lesions

Clinical Comparison of Xenon-Arc and Laser Photocoagulation of Retinal Lesions Abstract Photocoagulation of the choroid and retina can be produced by the absorption of light energy from either the xenon-arc or the laser photocoagulator. Both coagulator systems deliver light energy in the visible or infrared region of the spectrum, and the ultimate chorioretinal effect is determined by the total amount of light energy absorbed and converted to heat. The major physical difference between the light and laser systems is the type of radiation developed by each method. The ruby laser beam delivers light energy at one wavelength (6943 A) in the deep red region of the visible spectrum. The effect on an ocular tissue is determined by the specific tissue absorption for that wavelength only and by the instantaneous (0.0005 seconds) intensity of the beam. The xenonarc high pressure bulb delivers radiation from all portions of the visible and near infrared spectrum (Fig). This broad spectral energy output is presented to References 1. Zeiss Photocoagulator. 2. Optics Technology, Inc., and American Optical Co. Photocoagulators. 3. Meyer-Schwickerath, G.: Light Coagulation , S. M. Drance (trans.), St. Louis: C. V. Mosby Co., 1960. 4. Guerry, D., and Wiesinger, H.: Light Coagulation , Amer J Ophthal 49:87-96, 1960. 5. Pischel, D.K.; Clark, G.; and Cibis, P.A.: Symposium: Photocoagulation , Trans Amer Acad Ophthal Otolaryng 66:57-87, 1962. 6. Meyer-Schwickerath, G.: Further Progress in the Field of Light Coagulation , Trans Ophthal Soc UK 77:421-440, 1957. 7. Guerry, D., III, et al: Photocoagulation of the Retina: Report of a Successfully Treated Case of Angiomatosis Retinae , Amer J Ophthal 46:463-466, 1958. 8. Meyer-Schwickerath, G.: Treatment of Eales' Disease and Diabetic Retinopathy With Photocoagulation , Trans Ophthal Soc UK 84:67-76, 1964. 9. L'Esperance, F.A., Jr.: the Effect of Laser Radiation on Retinal Vasculature, to be published. 10. Okun, E., and Cibis, P.A.: The Role of Photocoagulation in the Management of Retinoschisis , Arch Ophthal 72:309-314, 1964.Crossref 11. L'Esperance, F.A., Jr.: Reconstituted Collagen Tape in Retinal Detachment Surgery , Arch Ophthal 73:472-475, 1965.Crossref 12. Ellsworth, R.M.: Personal communication to the author, June 1965. 13. Guinau, P.: The Value of Light Coagulation in General Ophthalmic Practice , Trans Ophthal Soc UK 84:77-94, 1964. 14. Hopping, W.; Meyer-Schwickerath, G.; and Lund, O-E.: Light Coagulation in Intra-Ocular Melanomas , in Boniuk, M. (ed.), Ocular and Adnexal Tumors , St. Louis: C. V. Mosby Co., 1964, pp 334-340. 15. Geeraets, W.J., et al: The Relative Absorption of Thermal Energy in Retina and Choroid , Invest Ophthal 1:340-347, 1962. 16. Geeraets, W.J., et al: The Loss of Light Energy in Retina and Choroid , Arch Ophthal 64:606-615, 1960.Crossref 17. Minton, J.P.: A Method to Determine Laser Wavelength Absorption Capabilities of Experimental Malignant Tumors , Life Sci 3:1007-1010, 1964.Crossref 18. McGuff, P.E., et al: Studies of Surgical Application of Laser (Light Amplication by Stimulated Emission of Radiation) , Surg Forum 14:143-145, 1963. 19. McGuff, P.E., et al: Effects of Laser Radiation on Tumor Transplants , Fed Proc 24 (pt III, No. (1) ):150-154 (Jan-Feb) 1965. 20. Klein, E., et al: Interaction of Laser Radiation With Biologic Systems: II Experimental Tumors , Fed Proc 24 (pt III, No. (1) ):143-149 (Jan-Feb) 1965. 21. Minton, J.P., et al: Some Factors Affecting Tumor Response After Laser Radiation , Fed Proc 24 (pt III, No. (1) ):155-158 (Jan-Feb) 1965. 22. Havener, W.H.: Clinical Experiences With the Photocoagulator , Amer J Ophthal 49:1212-1218, 1960. 23. Spalter, H.F.: Prophylactic Photocoagulation of Recurrent Retinochoroiditis, to be published. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Clinical Comparison of Xenon-Arc and Laser Photocoagulation of Retinal Lesions

Archives of Ophthalmology , Volume 75 (1) – Jan 1, 1966

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Publisher
American Medical Association
Copyright
Copyright © 1966 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1966.00970050063012
Publisher site
See Article on Publisher Site

Abstract

Abstract Photocoagulation of the choroid and retina can be produced by the absorption of light energy from either the xenon-arc or the laser photocoagulator. Both coagulator systems deliver light energy in the visible or infrared region of the spectrum, and the ultimate chorioretinal effect is determined by the total amount of light energy absorbed and converted to heat. The major physical difference between the light and laser systems is the type of radiation developed by each method. The ruby laser beam delivers light energy at one wavelength (6943 A) in the deep red region of the visible spectrum. The effect on an ocular tissue is determined by the specific tissue absorption for that wavelength only and by the instantaneous (0.0005 seconds) intensity of the beam. The xenonarc high pressure bulb delivers radiation from all portions of the visible and near infrared spectrum (Fig). This broad spectral energy output is presented to References 1. Zeiss Photocoagulator. 2. Optics Technology, Inc., and American Optical Co. Photocoagulators. 3. Meyer-Schwickerath, G.: Light Coagulation , S. M. Drance (trans.), St. Louis: C. V. Mosby Co., 1960. 4. Guerry, D., and Wiesinger, H.: Light Coagulation , Amer J Ophthal 49:87-96, 1960. 5. Pischel, D.K.; Clark, G.; and Cibis, P.A.: Symposium: Photocoagulation , Trans Amer Acad Ophthal Otolaryng 66:57-87, 1962. 6. Meyer-Schwickerath, G.: Further Progress in the Field of Light Coagulation , Trans Ophthal Soc UK 77:421-440, 1957. 7. Guerry, D., III, et al: Photocoagulation of the Retina: Report of a Successfully Treated Case of Angiomatosis Retinae , Amer J Ophthal 46:463-466, 1958. 8. Meyer-Schwickerath, G.: Treatment of Eales' Disease and Diabetic Retinopathy With Photocoagulation , Trans Ophthal Soc UK 84:67-76, 1964. 9. L'Esperance, F.A., Jr.: the Effect of Laser Radiation on Retinal Vasculature, to be published. 10. Okun, E., and Cibis, P.A.: The Role of Photocoagulation in the Management of Retinoschisis , Arch Ophthal 72:309-314, 1964.Crossref 11. L'Esperance, F.A., Jr.: Reconstituted Collagen Tape in Retinal Detachment Surgery , Arch Ophthal 73:472-475, 1965.Crossref 12. Ellsworth, R.M.: Personal communication to the author, June 1965. 13. Guinau, P.: The Value of Light Coagulation in General Ophthalmic Practice , Trans Ophthal Soc UK 84:77-94, 1964. 14. Hopping, W.; Meyer-Schwickerath, G.; and Lund, O-E.: Light Coagulation in Intra-Ocular Melanomas , in Boniuk, M. (ed.), Ocular and Adnexal Tumors , St. Louis: C. V. Mosby Co., 1964, pp 334-340. 15. Geeraets, W.J., et al: The Relative Absorption of Thermal Energy in Retina and Choroid , Invest Ophthal 1:340-347, 1962. 16. Geeraets, W.J., et al: The Loss of Light Energy in Retina and Choroid , Arch Ophthal 64:606-615, 1960.Crossref 17. Minton, J.P.: A Method to Determine Laser Wavelength Absorption Capabilities of Experimental Malignant Tumors , Life Sci 3:1007-1010, 1964.Crossref 18. McGuff, P.E., et al: Studies of Surgical Application of Laser (Light Amplication by Stimulated Emission of Radiation) , Surg Forum 14:143-145, 1963. 19. McGuff, P.E., et al: Effects of Laser Radiation on Tumor Transplants , Fed Proc 24 (pt III, No. (1) ):150-154 (Jan-Feb) 1965. 20. Klein, E., et al: Interaction of Laser Radiation With Biologic Systems: II Experimental Tumors , Fed Proc 24 (pt III, No. (1) ):143-149 (Jan-Feb) 1965. 21. Minton, J.P., et al: Some Factors Affecting Tumor Response After Laser Radiation , Fed Proc 24 (pt III, No. (1) ):155-158 (Jan-Feb) 1965. 22. Havener, W.H.: Clinical Experiences With the Photocoagulator , Amer J Ophthal 49:1212-1218, 1960. 23. Spalter, H.F.: Prophylactic Photocoagulation of Recurrent Retinochoroiditis, to be published.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Jan 1, 1966

References