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Stimulation of a Filtering Bleb

Stimulation of a Filtering Bleb Abstract When a polycystic bleb forms after a filtering procedure for glaucoma, aqueous flows across the conjunctiva.1-3 This has been demonstrated by dilution of fluorescein applied to the bleb area. The dark, nonfluorescent undiluted dye becomes a brilliant greenish-orange upon contact with aqueous. Another method of demonstrating that aqueous can pass transconjunctivally is by eccentric perilimbal suction cup analysis.4,5 When a perilimbal suction cup is centered over a filtering bleb and connected to negative pressure, aqueous collects within the cup. This method essentially accelerates and augments transconjunctival flow. If a continuous flow of aqueous is necessary to maintain a patent sclerostomy and induce a functioning cystic bleb, then the technique of augmenting flow by eccentric suction might aid a faltering bleb. This communication describes the technique of eccentric suction of fistulizing sites with the perilimbal suction cup apparatus. It will be demonstrated that a faltering filtering bleb may be References 1. Verhoeff, F.H.: A Further Note on the Sclerotome , Ophthalmoscope , p 220, 1913. 2. Seidel, E.: Weitere Experimentelle Untersuchungen über die Quelle und der Verlauf der intraokularen Safstromung , Arch Ophth 104:403, 1921. 3. Kronfeld, P.C.: The Chemical Demonstration of Transconjunctival Passage of Aqueous After Anti Glaucomatous Operations , Amer J Ophthal 35:38, 1952, (Part II) . 4. Galin, M.A.; Baras, I., and McLean, J.M.: How Does à Filtering Bleb Work? Tr Amer Acad Ophthal Otol, to be published. 5. Galin, M.A.; Baras, I., and McLean, J.M.: The Mechanism of External Filtration, Amer J Ophthal, to be published. 6. Moses, R.A., and Becker, B.: Clinical Tonography: The scleral rigidity correction , Amer J Ophthal 45:196, 1958. 7. Kronfeld, P.C.: The Mechanism of Filtering Operations , Tr Pacific Coast Oto-Ophth Soc 30: 23, 1949. 8. Teng, C.C.; Chi, H.H.; and Katzin, H.M.: Histology and Mechanism of Filtering Operations , Amer J Ophthal 47:16, 1959. 9. Chi, H.H.; Teng, C.C.; and Katzin, H.M.: Aqueous Degenerative Effect and the Protective Role of Endothelium in Eye Pathology , Amer J Ophthal 50:365, 1960. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

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Publisher
American Medical Association
Copyright
Copyright © 1965 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1965.00970040779007
Publisher site
See Article on Publisher Site

Abstract

Abstract When a polycystic bleb forms after a filtering procedure for glaucoma, aqueous flows across the conjunctiva.1-3 This has been demonstrated by dilution of fluorescein applied to the bleb area. The dark, nonfluorescent undiluted dye becomes a brilliant greenish-orange upon contact with aqueous. Another method of demonstrating that aqueous can pass transconjunctivally is by eccentric perilimbal suction cup analysis.4,5 When a perilimbal suction cup is centered over a filtering bleb and connected to negative pressure, aqueous collects within the cup. This method essentially accelerates and augments transconjunctival flow. If a continuous flow of aqueous is necessary to maintain a patent sclerostomy and induce a functioning cystic bleb, then the technique of augmenting flow by eccentric suction might aid a faltering bleb. This communication describes the technique of eccentric suction of fistulizing sites with the perilimbal suction cup apparatus. It will be demonstrated that a faltering filtering bleb may be References 1. Verhoeff, F.H.: A Further Note on the Sclerotome , Ophthalmoscope , p 220, 1913. 2. Seidel, E.: Weitere Experimentelle Untersuchungen über die Quelle und der Verlauf der intraokularen Safstromung , Arch Ophth 104:403, 1921. 3. Kronfeld, P.C.: The Chemical Demonstration of Transconjunctival Passage of Aqueous After Anti Glaucomatous Operations , Amer J Ophthal 35:38, 1952, (Part II) . 4. Galin, M.A.; Baras, I., and McLean, J.M.: How Does à Filtering Bleb Work? Tr Amer Acad Ophthal Otol, to be published. 5. Galin, M.A.; Baras, I., and McLean, J.M.: The Mechanism of External Filtration, Amer J Ophthal, to be published. 6. Moses, R.A., and Becker, B.: Clinical Tonography: The scleral rigidity correction , Amer J Ophthal 45:196, 1958. 7. Kronfeld, P.C.: The Mechanism of Filtering Operations , Tr Pacific Coast Oto-Ophth Soc 30: 23, 1949. 8. Teng, C.C.; Chi, H.H.; and Katzin, H.M.: Histology and Mechanism of Filtering Operations , Amer J Ophthal 47:16, 1959. 9. Chi, H.H.; Teng, C.C.; and Katzin, H.M.: Aqueous Degenerative Effect and the Protective Role of Endothelium in Eye Pathology , Amer J Ophthal 50:365, 1960.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Dec 1, 1965

References