Yvonne M Buys

Summary

Affiliation: University of Toronto
Country: Canada

Publications

  1. ncbi Effect of physician remuneration fees on glaucoma procedure rates in Canada
    Yvonne M Buys
    Department of Ophthalmology and Vision Sciences, University of Toronto, Canada
    J Glaucoma 20:548-52. 2011
  2. ncbi Effect of sleeping in a head-up position on intraocular pressure in patients with glaucoma
    Yvonne M Buys
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
    Ophthalmology 117:1348-51. 2010
  3. ncbi Prospective randomized comparison of one- versus two-site Phacotrabeculectomy two-year results
    Yvonne M Buys
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Toronto, Canada
    Ophthalmology 115:1130-1133.e1. 2008
  4. ncbi Retinal arteriolar vascular reactivity in untreated and progressive primary open-angle glaucoma
    Subha T Venkataraman
    Glaucoma and Retina Research Group, Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
    Invest Ophthalmol Vis Sci 51:2043-50. 2010
  5. ncbi Outcome of Ahmed valve implantation when preoperative IOP less than 21 mm Hg
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Ontario, Canada
    J Glaucoma 18:674-8. 2009
  6. ncbi Second Ahmed valve insertion in the same eye
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, University of Toronto, Ontario, Canada
    J Glaucoma 18:336-40. 2009
  7. ncbi Digital ocular massage for hypertensive phase after Ahmed valve surgery
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Toronto, Ontario, Canada
    J Glaucoma 19:11-4. 2010
  8. ncbi Meta-analysis of 1- versus 2-Site Phacotrabeculectomy
    Gdih A Gdih
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada
    Ophthalmology 118:71-6. 2011
  9. ncbi Glaucoma laser and surgical procedure rates in Canada: a long-term profile
    Robert J Campbell
    Department of Ophthalmology, Queen s University, Hotel Dieu Hospital, Kingston, Ontario, Canada
    Can J Ophthalmol 43:449-53. 2008
  10. ncbi Effect of medical therapy on glaucoma filtration surgery rates in Ontario
    Rony Rachmiel
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, and Department of Public Health Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario
    Arch Ophthalmol 124:1472-7. 2006

Collaborators

Detail Information

Publications39

  1. ncbi Effect of physician remuneration fees on glaucoma procedure rates in Canada
    Yvonne M Buys
    Department of Ophthalmology and Vision Sciences, University of Toronto, Canada
    J Glaucoma 20:548-52. 2011
    ..Earlier studies have reported wide regional variability in glaucoma procedure rates, suggesting nonclinical factors influencing procedure rates. This study was designed to investigate the possible influence of fees on procedure rates...
  2. ncbi Effect of sleeping in a head-up position on intraocular pressure in patients with glaucoma
    Yvonne M Buys
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
    Ophthalmology 117:1348-51. 2010
    ..To determine whether a 30-degree head-up sleeping position decreases nocturnal intraocular pressure (IOP) compared with lying flat in patients with glaucoma...
  3. ncbi Prospective randomized comparison of one- versus two-site Phacotrabeculectomy two-year results
    Yvonne M Buys
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Toronto, Canada
    Ophthalmology 115:1130-1133.e1. 2008
    ..A possible explanation has been relatively small samples and short follow-up. We prospectively observed 80 patients for 2 years randomized to one- versus two-site phacotrabeculectomy with the primary outcome measure being IOP...
  4. ncbi Retinal arteriolar vascular reactivity in untreated and progressive primary open-angle glaucoma
    Subha T Venkataraman
    Glaucoma and Retina Research Group, Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
    Invest Ophthalmol Vis Sci 51:2043-50. 2010
    ..Conclusions. A reduced magnitude of arteriolar vascular reactivity in response to normoxic hypercapnia was shown in uPOAG and in pPOAG. Vascular reactivity improved after dorzolamide treatment in POAG...
  5. ncbi Outcome of Ahmed valve implantation when preoperative IOP less than 21 mm Hg
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Ontario, Canada
    J Glaucoma 18:674-8. 2009
    ..To examine the results of Ahmed glaucoma drainage device (GDD) implantation in patients with a preoperative intraocular pressure (IOP) of 20 mm Hg or less...
  6. ncbi Second Ahmed valve insertion in the same eye
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, University of Toronto, Ontario, Canada
    J Glaucoma 18:336-40. 2009
    ..To examine the results of same-eye second Ahmed glaucoma drainage device (GDD) insertion in eyes with refractory glaucoma despite previous Ahmed GDD insertion and maximal tolerated medical therapy...
  7. ncbi Digital ocular massage for hypertensive phase after Ahmed valve surgery
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Toronto, Ontario, Canada
    J Glaucoma 19:11-4. 2010
    ..To examine the role of ocular massage during the hypertensive phase after Ahmed valve surgery..
  8. ncbi Meta-analysis of 1- versus 2-Site Phacotrabeculectomy
    Gdih A Gdih
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada
    Ophthalmology 118:71-6. 2011
    ..Comparison of efficacy of intraocular pressure (IOP) reduction between 1- versus 2-site phacotrabeculectomy...
  9. ncbi Glaucoma laser and surgical procedure rates in Canada: a long-term profile
    Robert J Campbell
    Department of Ophthalmology, Queen s University, Hotel Dieu Hospital, Kingston, Ontario, Canada
    Can J Ophthalmol 43:449-53. 2008
    ..The objective of this study was to synthesize Canadian national and provincial data regarding glaucoma laser and surgical procedure rates from 1992 to 2004...
  10. ncbi Effect of medical therapy on glaucoma filtration surgery rates in Ontario
    Rony Rachmiel
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, and Department of Public Health Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario
    Arch Ophthalmol 124:1472-7. 2006
    ..To analyze trends of glaucoma filtration surgery in Ontario...
  11. ncbi Prostaglandin efficacy and safety study undertaken by race (the PRESSURE study)
    Catherine M Birt
    Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
    J Glaucoma 19:460-7. 2010
    ..Our hypothesis was that there might be a possible ethnic-based difference in IOP-lowering effectiveness between the 3 medications...
  12. ncbi Correlation between the indiana bleb appearance grading scale and intraocular pressure after phacotrabeculectomy
    Michael Smith
    Toronto Western Hospital, University of Toronto, Ontario, Canada
    J Glaucoma 18:217-9. 2009
    ..To investigate the relationship between bleb morphology, recorded using the Indiana Bleb Appearance Grading Scale (IBAGS), and intraocular pressure (IOP) after phacotrabeculectomy...
  13. ncbi Ahmed glaucoma valve implantation in uveitic glaucoma versus open-angle glaucoma patients
    Rony Rachmiel
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
    Can J Ophthalmol 43:462-7. 2008
    ..However, the success and complication rates of GDDs in UG patients utilizing a control group with standard demographic data, design, and surgical technique have never been evaluated...
  14. ncbi Disc photography and Heidelberg retinal tomography documentation of reversal of cupping following trabeculectomy
    Darana Yuen
    Toronto Western Hospital, University of Toronto, 399 Bathurst Street, East Wing 6 405, Toronto, Ontario, M5T 2S8, Canada
    Graefes Arch Clin Exp Ophthalmol 248:1671-3. 2010
    ..There has not been any documentation in the literature of reversal of cupping with accompanying Heidelberg Retinal Tomograph (HRT) images and visual field (VF) changes at each time point...
  15. ncbi Discrepancy between results and abstract conclusions in industry- vs nonindustry-funded studies comparing topical prostaglandins
    Tariq Alasbali
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto Western Hospital, Toronto, Ontario, Canada
    Am J Ophthalmol 147:33-38.e2. 2009
    ....
  16. ncbi Replacement of Ahmed aqueous drainage devices in eyes with device-related complications
    Michael Smith
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
    J Glaucoma 18:484-7. 2009
    ..To examine the results of removal and simultaneous replacement of Ahmed aqueous drainage devices (ADDs), which require removal due to complications...
  17. ncbi Multicenter study of compliance and drop administration in glaucoma
    Ramin Kholdebarin
    Department of Ophthalmology, Queen s University, Kingston, Ontario, Canada
    Can J Ophthalmol 43:454-61. 2008
    ..Improper administration technique can lead to contamination and inaccurate dosing. This study estimates the prevalence and predictors of noncompliance and improper administration technique among Canadian glaucoma patients...
  18. ncbi Canadian Glaucoma Study: 3. Impact of risk factors and intraocular pressure reduction on the rates of visual field change
    Balwantray C Chauhan
    Department of Ophthalmology and Visual Sciences, Dalhousie University, Victoria, Halifax, Nova Scotia B3H 2Y9, Canada
    Arch Ophthalmol 128:1249-55. 2010
    ....
  19. ncbi Laser trabeculoplasty trends with the introduction of new medical treatments and selective laser trabeculoplasty
    Rony Rachmiel
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Toronto, Ontario, Canada
    J Glaucoma 15:306-9. 2006
    ..To correlate trends of laser trabeculoplasties (LTPs) with the introduction of medical therapies for glaucoma and to assess whether these trends changed after the introduction of selective laser trabeculoplasty (SLT) in 2001...
  20. ncbi Sterile single use cover for the G-probe Transscleral Cyclodiode
    Dan B Rootman
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
    J Glaucoma 20:260-5. 2011
    ..Multiuse of the G-probe transscleral cyclophotocoagulation (TSCPC) device can lead to contamination. We evaluated the mechanical stability and clinical efficacy of a disposable sterile barrier for the G-probe footplate...
  21. ncbi Is the Ex-PRESS glaucoma shunt magnetic resonance imaging safe?
    Noa Geffen
    Department of Ophthalmology and Vision Sciences, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
    J Glaucoma 19:116-8. 2010
    ..Ex-PRESS mini glaucoma shunt is a miniature, stainless steel, nonvalved device used for the treatment of glaucoma. The purpose of this study was to evaluate the safety of the Ex-PRESS glaucoma shunt during magnetic resonance (MR) imaging...
  22. ncbi Late-onset bleb infections: prevalence and risk factors
    Sapna Sharan
    Toronto Western Hospital, University Health Network, Ontario, Canada
    Can J Ophthalmol 44:279-83. 2009
    ..The purpose of this study was to determine the rate and course of blebitis/late endophthalmitis 5-10 years post-filtration surgery and to evaluate risk factors...
  23. ncbi Comparison of glaucoma progression evaluated with Heidelberg retina tomograph II versus optic nerve head stereophotographs
    Dimitrios Kourkoutas
    Department of Ophthalmology, Toronto Western Hospital, University Health Network, Ontario, Canada
    Can J Ophthalmol 42:82-8. 2007
    ..To compare disease progression in glaucoma evaluated by means of the Heidelberg retina tomograph (HRT II) or by expert clinical assessment of colour stereophotographs of the optic nerve head (ONH)...
  24. ncbi Finger massage versus a novel massage device after trabeculectomy
    Pieter Gouws
    Department of Ophthalmology and Visual Sciences, Toronto Western Hospital, Toronto, ON, Canada
    Can J Ophthalmol 43:222-4. 2008
    ..The device provides the patient with audio feedback about correctly applied force, and the force applied can be customized for each patient...
  25. ncbi Assessment of retinal hemodynamics with the Canon laser blood flowmeter after a single dose of 2% dorzolamide hydrochloride eyedrops
    Dana Faingold
    Department of Ophthalmology, Toronto Western Hospital, University Health Network, Toronto, Ont
    Can J Ophthalmol 39:506-10. 2004
    ..Longer-term studies of retinal hemodynamics in patients with glaucoma are warranted as evolving treatments aim to improve ocular blood flow as well as reduce IOP...
  26. ncbi Evaluation of investigator bias in industry-funded clinical trials of latanoprost
    Delan Jinapriya
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario
    Can J Ophthalmol 46:531-6. 2011
    ..To determine whether sponsorship of prostaglandin analogue (PGA) clinical trials results in investigator bias in outcomes when studying intraocular pressure (IOP)...
  27. ncbi Survey of conflict-of-interest disclosure policies of ophthalmology journals
    Ayako Anraku
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada
    Ophthalmology 116:1093-6. 2009
    ..To survey the disclosure policy for authors, peer reviewers, and editors in English-language ophthalmology journals...
  28. ncbi Outcomes of Canadian National Institute for the Blind Baker research grants from 1998 to 2009
    Erin A Compeau
    Schulich School of Business, York University, Toronto, Ontario
    Can J Ophthalmol 46:386-90. 2011
    ..To assess the outcome of Canadian National Institute for the Blind (CNIB) Baker research grants...
  29. ncbi The influence of central corneal thickness on response to topical prostaglandin analogue therapy
    Catherine M Birt
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ont
    Can J Ophthalmol 47:51-4. 2012
    ..We evaluated the IOP-lowering effect of topical prostaglandin analogues (PGAs) in relation to CCT...
  30. ncbi Repeated use of transscleral cyclophotocoagulation laser G-probes
    Monica M Carrillo
    Department of Ophthalmology and Vision Sciences, Toronto Western Hospital, University Health Network and University of Toronto, Ontario, Canada
    J Glaucoma 13:51-4. 2004
    ..CONCLUSION: G-probes not only remain fully functional after repeated use and sterilization with 70% alcohol but also slightly increase in energy output...
  31. ncbi The effect of pupil dilation on driving vision in Canada
    Hall F Chew
    Department of Ophthalmology and Vision Sciences, University of Toronto, Ont
    Can J Ophthalmol 42:585-91. 2007
    ..To determine whether there is a clinically significant reduction in visual acuity (VA) or contrast sensitivity (CS), with and without glare, following examination with pupil dilation in patients currently driving...
  32. ncbi Comparison of newly diagnosed ocular hypertension and open-angle glaucoma: ocular variables, risk factors, and disease severity
    Yvonne M Buys
    Department of Ophthalmology, University of Toronto, 399 Bathurst Street, EW 6 405, Toronto, ON, M5T 2S8, Canada
    J Ophthalmol 2012:757106. 2012
    ..030), and 0.36 (P = 0.010) for smoking. Conclusions. Increased age was a risk for OAG, and smoking decreased the risk of OAG compared to OH. Almost half of the OAG subjects had moderate/advanced disease at diagnosis...
  33. ncbi Survey of complementary and alternative medicine use in glaucoma patients
    Michael J Wan
    Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
    J Glaucoma 21:79-82. 2012
    ..To determine the prevalence, types, and associated factors of complementary and alternative medicine (CAM) use in glaucoma patients...
  34. ncbi Hypotony maculopathy and papilledema after trabeculectomy in a patient with pseudotumor cerebri
    Dana Faingold
    University Health Network, Toronto Western Hospital and University of Toronto, Ontario, Canada
    J Glaucoma 12:374-8. 2003
  35. ncbi Economics of selective laser trabeculoplasty as primary therapy for glaucoma
    Yvonne M Buys
    Can J Ophthalmol 41:419-20. 2006
  36. ncbi Use of ultrasound biomicroscopy to diagnose Ahmed valve obstruction by iris
    Monica M Carrillo
    Department of Ophthalmology, Toronto Western Hospital, Ont
    Can J Ophthalmol 40:499-501. 2005
    ..An iridectomy over the tip of the tube instituted filtration in each case. INTERPRETATION: UBM was instrumental in diagnosing the presence and cause of occlusion of aqueous drainage tubes...
  37. ncbi Bevacizumab: the need for controlled studies to move forward
    Yvonne M Buys
    Can J Ophthalmol 42:789. 2007
  38. ncbi Canadian Glaucoma Study: 2. risk factors for the progression of open-angle glaucoma
    Balwantray C Chauhan
    Department of Ophthalmology and Visual Sciences, Dalhousie University, Second Floor, Centennial Bldg, Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada B3H 2Y9
    Arch Ophthalmol 126:1030-6. 2008
    ..To determine systemic and ocular risk factors for visual field progression in open-angle glaucoma...
  39. ncbi Acute angle-closure glaucoma following neodymium:YAG laser posterior capsulotomy
    Monica Carrillo
    University Health Network, Toronto Western Hospital and University of Toronto, Toronto, Ont
    Can J Ophthalmol 38:230-2. 2003