Graham E. Trope
Toronto General Hospital
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Featured researches published by Graham E. Trope.
Ophthalmology | 1990
Graham E. Trope; Steven Ma
Neodymium: YAG (Nd:YAG) transscleral cyclocoagulation successfully lowers intraocular pressure (IOP) over the short term in animals and humans. Twenty-eight eyes with uncontrolled glaucoma were prospectively followed over a mean period of 21.9 months. Mean pretreatment IOP was 47.5 mmHg. Mean posttreatment IOP was 19.9 mmHg (P less than 0.005). Mean (+/- standard deviation) number of treatments was 1.86 (+/- 1.11) Mean number of drugs used before and after treatment was 3.28 and 2.48, respectively (P less than 0.01). A total of 10.7% eyes went phthisical. Thirty percent of eyes with vision and good IOP control (i.e., less than 21 mmHg) lost some vision after the procedure. Neodymium:YAG transscleral cyclocoagulation appears to be an effective method of controlling IOP over the mid-term, but is associated with significant complications.
Journal of Glaucoma | 2003
Michael Iskedjian; John H. Walker; Colin Vicente; Graham E. Trope; Yvonne M. Buys; Thomas R. Einarson; David Covert
PurposeA longitudinal, retrospective study investigated the cost of primary open angle glaucoma (POAG). MethodsPatient files from two tertiary care glaucoma practices were reviewed. Patients diagnosed with POAG and ≥2.5 years of follow-up data were included. Data collected included visual field mean deviation, physicians assessment, and resource utilization (physician visits, procedures, and medications). Costs, reported in 2001 Canadian dollars, were compared between groups, based on initial visual field mean deviation, including mild (<5 dB), moderate (5 to <12 dB), and severe (≥12 dB), and based on physicians assessment, including controlled, uncontrolled, or patients initially uncontrolled for 12 months who become controlled. ResultsOf 411 patient charts extracted, 265 were included; 35 were excluded for ocular comorbidities and 111 patients with insufficient follow-up. Mean (standard deviation) yearly costs overall (N = 265) and for mild (n = 90), moderate (n = 91), and severe (n = 84) groups were
Journal of Glaucoma | 2006
Rony Rachmiel; Graham E. Trope; Mary Chipman; Peter Gouws; Yvonne M. Buys
508 (
Ophthalmology | 1987
Robert G. Devenyi; Graham E. Trope; William Hunter; Osama Badeeb
278),
British Journal of Ophthalmology | 1987
R G Devenyi; Graham E. Trope; W S Hunter; W H Hunter
408 (
British Journal of Ophthalmology | 1988
Osama Badeeb; Graham E. Trope; C Mortimer
266),
Journal of Glaucoma | 2010
Michael J. Wan; Shannon Daniel; Faazil Kassam; Gaganpal Mutti; Ziad Butty; Oscar Kasner; Graham E. Trope; Yvonne M. Buys
512 (
Ophthalmology | 1987
Emily Y. Chew; Graham E. Trope; Brian J. Mitchell
288), and
Journal of Glaucoma | 2010
Noa Geffen; Graham E. Trope; Tariq Alasbali; David Salonen; Adrian P. Crowley; Yvonne M. Buys
609 (
Journal of Glaucoma | 2014
Noa Geffen; Yvonne M. Buys; Michael R. Smith; Ayako Anraku; Tariq Alasbali; Ronny Rachmiel; Graham E. Trope
243), respectively. Differences between mean yearly costs were statistically significant for all three groups (P < 0.05). Costs for controlled (n = 110), uncontrolled (n = 76), and uncontrolled then controlled group (n = 79) were