Skip to main content
Log in

Diabetic retinopathy study

Preliminary results from 215 patients treated uniocularly with photocoagulation

  • Published:
Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie Aims and scope Submit manuscript

Summary

Preliminary results of a controlled study on diabetic retinopathy are reported. Two hundred and fifteen patients with proliferative (PDR) and nonproliferative (NPDR) retinopathy were uniocularly treated by Xenon photocoagulation and followed for a minimum of 6 months–6 years. Intra- and epiretinal new vessel formations (RNF) decreased in treated but increased in untreated eyes at a high statistical significance. A transition of background retinopathy into the proliferative stage was significantly retarded after photocoagulation. An improvement of new vessel formations on the disc (DNF) was not evident after 3 years of follow-up. The progression of preretinal neovascularization (PRNF) was significantly reduced only for 1–2 years after treatment. The incidence of massive vitreous hemorrhages, however, which showed the highest quotient of contingency with PRNF was much lower in treated eyes also after 3 years. The difference was significant only in extensively photocoagulated eyes with more than 100 lesions on average. The effect of photocoagulation on diabetic maculopathy with preservation of a useful visual acuity was highly significant only in diabetics under 60 years of age, the effect increasing with time as the control eyes fared worse. By contrast, in patients over 60 years of age, the course of maculopathy was not influenced, and a linear decrease of visual acuity occurred in both treated and untreated eyes.

Zusammenfassung

Vorläufige Ergebnisse einer Langzeit-Verlaufsstudie zur diabetischen Retinopathie. 215 Patienten wurden einseitig photokoaguliert und 1/2 bis 6 Jahre kontrolliert mit Hilfe von Funduspanoramafotos. Eine hoch-signifikante Besserung intra- und epiretinaler Gefäßneubildungen war begleitet von einer Zunahme an den nicht behandelten Partneraugen. An koagulierten Augen mit nicht-proliferativer Retinopathie kam es seltener zu Gefäßneubildungen. Papillensegel wurden nicht signifikant, periphere praeretinale Proliferationen nur für 1 bis 2 Jahre günstig beeinflußt. Die Photokoagulation hatte einen signifikant günstigen Effekt auf die häufige diabetische Makulopathie nur bei Diabetikern mit einem Alter von weniger als 60 Jahren. In dieser Altersklasse blieb die Sehschärfe an den behandelten Augen über 3 Jahre konstant, während sie an den Kontrollaugen um 17,3 % sank. Bei Patienten mit über 60 Jahren wurde der Verlauf der Makulopathie durch die Behandlung nicht beeinflußt. Die Sehschärfe fiel an den behandelten Augen um 43, an den unbehandelten um 36 % ab, wobei die Ausgangswerte bereits niedriger lagen als in der jüngeren Altersklasse.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Beetham, W.P.: Visual prognosis of proliferating diabetic retinopathy. Brit. J. Ophthal. 47, 611–619 (1963)

    Google Scholar 

  • Davis, M.D.: Natural course of diabetic retinopathy. In: J.S. Kimura, W.M. Caygill Eds.: Vascular complications of diabetes mellitus, pp. 139–167 (Mosby, Saint Louis 1967)

    Google Scholar 

  • Ederer, F., Hiller, R.: Clinical trials, diabetic retinopathy and photocoagulation. Survey Ophthal. 19, 267–286 (1975)

    Google Scholar 

  • Irvine, A.R., Norton, E.W.D.: Photocoagulation for diabetic retinopathy. Amer. J. Ophthal. 71, 437–445 (1971)

    Google Scholar 

  • Krill, A.E., Archer, D.B., Newell, F.W., Chishti, M.I.: Photocoagulation in diabetic retinopathy. Amer. J. Ophthal. 72, 299–321 (1971)

    Google Scholar 

  • James, W.A., L'Esperance, F.A.: Treatment of diabetic optic nerve neovascularization by extensive retinal photocoagulation. Amer. J. Ophthal. 78, 939–951 (1974)

    Google Scholar 

  • Koerner, F., Koerner, U.: Diabetic retinopathy study. I. Assessment and comparison of retinal lesions for computer analysis (in preparation)

  • Meyer-Schwickerath, G.: Light coagulation. Buech. Augenarzt. 33, 1–96 (1959)

    Google Scholar 

  • Meyer-Schwickerath, G.R.E., Schott, K.: Diabetic retinopathy and photocoagulation. Amer. J. Ophthal. 66, 597–603 (1968)

    Google Scholar 

  • Okun, E., Johnston, G.P.: Role of photocoagulation in the treatment of proliferative diabetic retinopathy: continuation and follow-up studies (3 59 eyes of 283 patients). In: Goldberg, M.F., and S.L. Fine (Eds.) Symposium on Treatment of Diabetic Retinopathy. Public Health Service Publication No. 1890, pp. 523–535 (1968)

  • Patz, A., Schatz, H., Berkow, J.W., Gittelsohn, A.M., Ticho, U.: Macular edema. An overlooked complication of diabetic retinopathy. Trans. Am. Acad. Ophthal. Otolaryngol. 77, 34–42 (1973)

    Google Scholar 

  • Rubinstein, K., Myska, V.: Pathogenesis and treatment of diabetic retinopathy. Brit. J. Ophthal. 58, 76–84 (1974)

    Google Scholar 

  • Schlegel, D.: “Photocoagulation bei diabetischer Retinopathie. Verlaufsstudie an 215 einäugig behandelten Patienten”. Med. Diss. (Univ. Tuebingen 1976)

  • Wessing, A.K., Meyer-Schwickerath, G.: Results of photocoagulation in diabetic retinopathy. In: Goldberg, M.F. and Fine, S.L. (Eds.) Symposium on Treatment of Diabetic Retinopathy. Public Health Service Publication No. 1890, pp. 569–592 (1968)

  • Zetterstrom, B.: The value of photocoagulation in diabetic retinopathy. Acta Ophthal. 50, 351–356 (1972)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

This study was subject of a doctoral dissertation of D. Schlegel.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Koerner, F., Schlegel, D. & Koerner, U. Diabetic retinopathy study. Albrecht von Graefes Arch. Klin. Ophthalmol. 200, 99–111 (1976). https://doi.org/10.1007/BF00414359

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00414359

Keywords

Navigation