Benchmark standards for refractive outcomes after NHS cataract surgery
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作者:
Gale, R. P.
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Leeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, EnglandLeeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, England
Gale, R. P.
[1
]
Saldana, M.
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Leeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, EnglandLeeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, England
Saldana, M.
[1
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Johnston, R. L.
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Cheltenham Gen Hosp, Gloucestershire Eye Unit, Cheltenham, Glos, EnglandLeeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, England
Johnston, R. L.
[2
]
Zuberbuhler, B.
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Leeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, EnglandLeeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, England
Zuberbuhler, B.
[1
]
McKibbin, M.
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Leeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, EnglandLeeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, England
McKibbin, M.
[1
]
机构:
[1] Leeds Teaching Hosp NHS Trust, Dept Ophthalmol, Leeds, W Yorkshire, England
[2] Cheltenham Gen Hosp, Gloucestershire Eye Unit, Cheltenham, Glos, England
Purpose To establish benchmark standards for refractive outcome after cataract surgery in the National Health Service when implementing the 2004 biometry guidelines of the Royal College of Ophthalmologists and customising A constants. Methods Three cycles of prospective data were collected throughout the cataract care pathway on all patients using an electronic medical record system (Medisoft Ophthalmology), between January 2003 and February 2006. The electronic medical record automatically recommends the formula to be used according to the College guidelines and allows A constants to be customised separately for either ultrasound or partial coherence interferometry methods of axial length measurement and for different intraocular lens models. Consultants and trainees performed routine phacoemulsification cataract surgery and new intraocular lens models were introduced during the cycles. Uncomplicated cases with in-the-bag fixation', achieving 6/12 Snellen acuity or better were included. Community ophthalmic opticians performed refraction at 4 weeks. Results The postoperative subjective refraction was within 1D of the predicted value in 79.7% of the 952 cases in cycle 1, 83.4% of 2406 cases in cycle 2, and 87.0% of 1448 cases in cycle 3. Conclusions On the basis of our data, using College formula, optimising A constants and partial coherence interferometry, a benchmark standard of 85% of patients achieving a final spherical equivalent within 1D of the predicted figure and 55% of patients within 0.5D should be adopted.
机构:
John A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USAJohn A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
Connors, R
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Boseman, P
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John A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USAJohn A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
Boseman, P
;
Olson, RJ
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John A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USAJohn A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
机构:
Southend Gen Hosp, Dept Ophthalmol, Westcliff On Sea SSO ORY, Essex, EnglandSouthend Gen Hosp, Dept Ophthalmol, Westcliff On Sea SSO ORY, Essex, England
机构:
John A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USAJohn A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
Connors, R
;
Boseman, P
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John A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USAJohn A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
Boseman, P
;
Olson, RJ
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John A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USAJohn A Moran Eye Ctr, Dept Ophthalmol & Visual Sci, Salt Lake City, UT 84132 USA
机构:
Southend Gen Hosp, Dept Ophthalmol, Westcliff On Sea SSO ORY, Essex, EnglandSouthend Gen Hosp, Dept Ophthalmol, Westcliff On Sea SSO ORY, Essex, England