Secondary Glaucoma Treatment by Means of Leksell Gama Knife
Výborný P., Nováček L., Pašta J., Šebesta P., Vladyka V., Liščák R.
Oční klinika 1. lékařské fakulty Univerzity Karlovy a Ústřední vojenské nemocnice, Praha, přednosta doc. MUDr. J. Pašta, CSc. Oddělení stereotaktické a radiační neurochirurgie Nemocnice Na Homolce, Praha, přednosta MUDr. R. Liščák, CSc. |
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Summary:
The authors followed up 107 eyes of 103 patients with the diagnosis of painful secondary
glaucoma treated by irradiation of the ciliary body by means of Leksell
gama knife (LGK Elekta Instruments AB). The goal was to decrease patient’s subopejective problems in to the treatment resistant and painful stages using non-invasive
stereo tactic neurosurgical procedure. The final version of the irradiation
schedule uses 8 mm collimators and the irradiation dose in blind eyes is 40 Gy at
the maximum and 20 Gy at the peripheral treating 50 % isodose; in partly sighted
eyes it is 30 Gy at the maximum and 15 Gy at the peripheral treating 50 % isodose.
The follow up period was 3–80 months, (average 26 months). The lowering of the
intraocular pressure to the not painful level was achieved in 56 eyes (52.2 %) during
the period of 1–8 weeks (median 4 weeks). The total disappearing of the pain
after the treatment was noticed in 71 eyes (66.4 %), partial reduction of the pain in
31 eyes (29 %), and no effect was observed in 5 eyes. In all cases of neovascularization
at least some decrease was noticed. The antiglaucomatous therapy was reduced
in 42 patients (39.3 %) 2–3 months after the irradiation, unchanged remained
in 51 patients (47.7 %). The stereotactic radiosurgical destruction of the ciliary
body by means of Leksell gama knife, may reduce the pain, the intraocular pressure,
and extensive medicament treatment in secondary painful glaucoma.
Key words:
secondary glaucoma, Leksell gama knife, radiosurgery
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