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Impact of contact versus non-contact wide-angle viewing systems on outcomes of primary retinal detachment repair (PRO study report number 5)
  1. Marisa G. Tieger1,
  2. Marianeli Rodriguez1,
  3. Jay C. Wang1,
  4. Anthony Obeid2,
  5. Claire Ryan3,
  6. Xinxiao Gao2,
  7. Srividya Kakulavarapu4,
  8. Patrick J. Mardis5,
  9. Malika L. Madhava2,
  10. Sean M. Maloney2,
  11. Adam Z. Adika6,
  12. Krishi V. Peddada7,
  13. Kareem Sioufi2,
  14. James A. Stefater1,
  15. Nora J. Forbes2,
  16. Antonio Capone Jr.8,
  17. Geoffrey G. Emerson9,
  18. Daniel P. Joseph10,
  19. Carl Regillo2,
  20. Jason Hsu2,
  21. Omesh Gupta2,
  22. Dean Eliott1,
  23. Edwin H. Ryan3,
  24. Yoshihiro Yonekawa2
  1. 1 Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
  2. 2 Mid Atlantic Retina, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
  3. 3 VitreoRetinal Surgery, Minneapolis, Minnesota, USA
  4. 4 Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, USA
  5. 5 University of Tennessee, Knoxville, Tennessee, USA
  6. 6 Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
  7. 7 Department of Ophthalmology, Drexel University College of Medicine, Philadelphia, PA, USA
  8. 8 Associated Retinal Consultants, Oakland University William Beaumont School of Medicine, Royal Oak, MI, USA
  9. 9 The Retina Center, Minneapolis, MN, USA
  10. 10 The Retina Institute, St. Louis, Missouri, USA
  1. Correspondence to Dr Yoshihiro Yonekawa, MEEI, Boston, MA 02114-3002, USA; yyonekawa{at}


Background/aims Vitrectomy to repair retinal detachment is often performed with either non-contact wide-angle viewing systems or wide-angle contact viewing systems. The purpose of this study is to assess whether the viewing system used is associated with any differences in surgical outcomes of vitrectomy for primary non-complex retinal detachment repair.

Methods This is a multicenter, interventional, retrospective, comparative study. Eyes that underwent non-complex primary retinal detachment repair by either pars plana vitrectomy (PPV) alone or in combination with scleral buckle/PPV in 2015 were evaluated. The viewing system at the time of the retinal detachment repair was identified and preoperative patient characteristics, intraoperative findings and postoperative outcomes were recorded.

Results A total of 2256 eyes were included in our analysis. Of those, 1893 surgeries used a non-contact viewing system, while 363 used a contact lens system. There was no statistically significant difference in single surgery anatomic success at 3 months (p=0.72), or final anatomic success (p=0.40). Average postoperative visual acuity for the contact-based cases was logMAR 0.345 (20/44 Snellen equivalent) compared with 0.475 (20/60 Snellen equivalent) for non-contact (p=0.001). After controlling for numerous confounding variables in multivariable analysis, viewing system choice was no longer statistically significant (p=0.097).

Conclusion There was no statistically significant difference in anatomic success achieved for primary retinal detachment repair when comparing non-contact viewing systems to contact lens systems. Postoperative visual acuity was better in the contact-based group but this was not statistically significant when confounding factors were controlled for.

  • retina
  • treatment surgery

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  • Twitter @JasonHsuMD

  • Contributors MT, MR, YY and JW were responsible for data analysis as well as drafting and editing the manuscript. AO, CR, XG, SK, PJM, MM, SMM, AZA, KVP, KS, JAS, NJF, AC, GGE, DPJ, CR, JH, OG, DE, EHR were responsible for planning, data collection as well as editing the manuscript. YY was responsible for the overall content and served as the guarantor.

  • Funding Phillips Eye Institute Foundation, VitreoRetinal Surgery Foundation.

  • Competing interests All disclosures are listed in the manuscript.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement All data relevant to the study are included in the article or uploaded as supplementary information. Please contact Dr Yonekawa for any additional information.

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