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Session Title: Surgical Outcomes
Session Date/Time: Monday 07/10/2013 | 08:00-09:30
Paper Time: 08:33
Venue: Auditorium (First Floor)
First Author: : V.Zygoura UK
Co Author(s): : C. Pitsas E. Papavasileiou N. Kopsachilis G. Carifi
To investigate the refractive outcomes of phacoemulsification cataract surgery in high myopia
Moorfields Eye Hospital, London, UK
Consecutive highly myopic eyes (?26mm) undergoing phacoemulsification cataract surgery over a 6-month period were included if the SRK-T formula was used, the optical biometry was available, and one of the hydrophobic Acrysof intraocular lenses (IOLs) had been implanted in the capsular bag. The subjective postoperative refraction was tested at 4 weeks after surgery. Other exclusion criteria were: previous refractive or other corneal surgery, and postoperative corrected distance visual acuity > 0.30 logMAR. The mean numerical error (MNE) was calculated as the mean of the difference between the predicted and the achieved spherical equivalent. The mean absolute error (MAE) was calculated as the mean of the absolute values.
During the study period, 214 eyes of 154 patients underwent cataract surgery. We observed 3 patients lost to follow-up, and 139 eyes met the inclusion criteria. The overall MNE was -0.26±0.60 Diopter (range 2.29 to -2.03 D), and the overall MAE was 0.50±0.43 D (range 0.01 to 2.29 D). Fifty-one eyes (36.7%) were within 0.25 D of target, 83 eyes (59.7%) were within 0.50 D of target, 126 eyes (90.6%) were within 1 D of planned refraction. There were no statistically significant differences between patients implanted with a 1-piece or 3-piece IOLs (P=0.474).
The refractive outcomes following modern phacoemulsification cataract surgery in this particular population seem to be in line with the refractive outcomes for the general population. The IOL type (single-piece VS multi-piece) did not seem to affect the results.
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