John L. Pearce

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A technique of late pars plana posterior capsulotomy following extracapsular cataract extraction and posterior chamber lens implantation is described. The results and complications of 67 cases with an average follow-up period of approximately 14 months are reported. The incidence of cystoid macular oedema following this procedure was 2.9%, with no incidence(More)
15 20 25 2 ABSTRACT This paper presents the estimated response of three pollutants, ozone (O 3), particulate matter ≤ 10 µm (PM 10), and nitrogen dioxide (NO 2), to individual local meteorological variables in Melbourne, Australia, over the period of 1999 to 2006. The meteorological-pollutant relationships have been assessed after controlling for long-term(More)
29 The influence of synoptic-scale circulations on air quality is an area of increasing interest to 30 air quality management in regards to future climate change. This study presents an analysis 31 where the dominant synoptic " types " over the region of Melbourne, Australia are determined 32 and linked to regional air quality. First, a self-organising map(More)
BACKGROUND Development of exposure metrics that capture features of the multipollutant environment are needed to investigate health effects of pollutant mixtures. This is a complex problem that requires development of new methodologies. OBJECTIVE Present a self-organizing map (SOM) framework for creating ambient air quality classifications that group days(More)
BACKGROUND Recent interest in the health effects of air pollution focuses on identifying combinations of multiple pollutants that may be associated with adverse health risks. OBJECTIVE Present a methodology allowing health investigators to explore associations between categories of ambient air quality days (i.e., multipollutant day types) and adverse(More)
This disposable 25-gauge cannula has a specially designed distal segment which facilitates crystalline lens nucleus hydrodissection or viscodissection. The injection of a fluid or viscous material creates a cleavage plane between the nucleus and cortex or capsule, thus facilitating extraction of the nucleus. The flattened, smooth, cannulated tip allows(More)
BACKGROUND Several studies have identified the association between ambient temperature and mortality; however, several features of temperature behavior and their impacts on health remain unresolved. We obtain daily counts of nonaccidental all-cause mortality data in the elderly (65 + years) and corresponding meteorological data for Melbourne, Australia(More)
  • J L Pearce
  • 1977
Three main designs of posterior chamber lenses in 140 cases have been reviewed. The visual results are satisfactory; patient satisfaction is good; and postoperative complications are limited to anterior dislocation of the feet of the lens and the necessity to wash out cortical remnants from behind the prosthesis in a small percentage of cases. The posterior(More)
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