[5 years' experience in the treatment of neovascular glaucoma using cryocoagulation. II. Treatment of pain and the development of visual acuity].
The authors evaluate the therapeutic results of pain of the eyes and the development of visual acuity of 38 eyes with neovascular glaucoma treated by cryocoagulation. In 12 eyes they used cyclo-cryocoagulation as an independent method and in 26 eyes the method of transscleral panretinal cryocoagulation combined with cyclo-cryocoagulation. The authors did not find a correlation between the degree of increased intraocular pressure and the painfulness of the eye. In the treatment of pain they achieved markedly better results when using transscleral panretinal cryocoagulation than cyclo-cryocoagulation alone. The better therapeutic results of treatment of pain by combined cryosurgery is associated with a better compensation of intraocular pressure. In the authors' view a significant in the treatment of pain is also played by the newly described so-called analgetic effect of panretinal cryocoagulation which develops probably as a result of damage of sensitive nerves of the bulbus during freezing of the sclera and the choroid. The development of the so-called analgetic effect is probably associated with two facts: relief from severe pain was perceived also by patients where during the early postoperative period a high intraocular pressure still persisted and also in patients where a high intraocular pressure rose again. This condition was, however, as a rule not associated with the onset of new pain. The use of transscleral panretinal cryocoagulation combined with cyclo-cryocoagulation achieved regression of pain within 5 days after operation in 100%. The author provide evidence that the visual acuity in neovascular glaucoma recedes very rapidly and irreversibly.(ABSTRACT TRUNCATED AT 250 WORDS)
Rehák
J
J
Ocní klinika LF UK, Olomouc.
Vymazal
M
M
D003452:Cryosurgery; D015355:Glaucoma, Neovascular / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D010146:Pain / Q000209:etiology*; D014792:Visual Acuity