Journal of cataract and refractive surgery · 2011
Prevalence of corneal astigmatism in patients having routine cataract surgery at a teaching hospital in the United Kingdom.
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Khan Mohammad I, Muhtaseb Mohammed
Аннотация
PURPOSE: To analyze and quantify the pattern of corneal astigmatism in patients awaiting cataract surgery and to establish the demand for toric intraocular lenses (IOLs) in a hospital unit.
SETTING: Singleton Hospital Abertawe Bro Morgannwg University NHS Trust, Swansea, United Kingdom.
DESIGN: Cross-sectional study.
METHODS: Keratometric measurements of all patients attending the preassessment clinic over a 4-month period were prospectively collected and analyzed.
RESULTS: The study comprised 1230 eyes of 746 patients with a mean age of 75.54 years ± 0.71 (SD). The corneal astigmatism was 0.50 diopter (D) or less in 301 eyes (24.47%), 1.50 D or less in 978 eyes (79.50%), more than 2.50 D in 57 eyes (4.61%), and 3.00 D or more in 24 eyes (1.93%).
CONCLUSIONS: Of patients attending for routine cataract surgery at a single center, 497 (40.41%) had more than 1.00 D of astigmatism. The results can help hospitals analyze the demand for and cost of using toric IOLs in patients with corneal astigmatism.
FINANCIAL DISCLOSURE: Neither author has a financial or proprietary interest in any material or method mentioned.
SETTING: Singleton Hospital Abertawe Bro Morgannwg University NHS Trust, Swansea, United Kingdom.
DESIGN: Cross-sectional study.
METHODS: Keratometric measurements of all patients attending the preassessment clinic over a 4-month period were prospectively collected and analyzed.
RESULTS: The study comprised 1230 eyes of 746 patients with a mean age of 75.54 years ± 0.71 (SD). The corneal astigmatism was 0.50 diopter (D) or less in 301 eyes (24.47%), 1.50 D or less in 978 eyes (79.50%), more than 2.50 D in 57 eyes (4.61%), and 3.00 D or more in 24 eyes (1.93%).
CONCLUSIONS: Of patients attending for routine cataract surgery at a single center, 497 (40.41%) had more than 1.00 D of astigmatism. The results can help hospitals analyze the demand for and cost of using toric IOLs in patients with corneal astigmatism.
FINANCIAL DISCLOSURE: Neither author has a financial or proprietary interest in any material or method mentioned.