Optimizing the correction of low corneal astigmatism in cataract patients
نویسندگان
چکیده
RESULTS: Implantation of a toric IOL reduced the refraction astigmatism by 80%. Aberrations increased in all patients, but while astigmatic aberration decreased with toric IOLs, spherical aberration decreased with aspheric IOLs. The UCVA was better with toric and aspheric IOLs (0.1 logMAR), whereas the BCVA was statistically better with aspheric IOLs compared to spherical (p = 0.05). The CSF was similar under photopic conditions. Under mesopic conditions however, spherical IOLs performed best, while toric lenses produced a decrease in the CSF (p < 0.05).
منابع مشابه
Results of the AcrySof Toric intraocular lenses implantation
BACKGROUND The expectations of post-removal cataract surgery patients are extremely high, and best vision acuity is expected. The best refractive results are influenced by two factors - cataract surgical removal and the corneal astigmatism correction. Currently, the two most often applied corneal astigmatism removal methods are laser surgery and toric intraocular lens implantation, with the lat...
متن کاملTreatment of astigmatism during phacoemulsification Tratamento do astigmatismo durante a facoemulsificação
INTRODUCTION Astigmatism is a visually disabling refractive error, and at least 15%-20% cataract patients have corneal astigmatism of ≥1.50 diopters (D). One way to correct astigmatism simultaneously during cataract surgery is to place limbal relaxing incisions (LRIs). It is possible, however, that late corneal biomechanics may play an unfavorable role in refractive outcomes over time. Toric in...
متن کاملPrevalence of Preoperative Corneal Astigmatism in Patients Undergoing Cataract Surgery at Mettapracharak Hospital, Thailand.
OBJECTIVE To describe and analyze the demography and distribution of preoperative corneal astigmatism in patients undergoing cataract surgery at Mettapracharak Hospital. MATERIAL AND METHOD The medical records of consecutive patients who had cataract surgery between October 1, 2010 and September 30, 2011 at Mettapracharak Hospital were retrospectively reviewed and analyzed. Patient demographi...
متن کاملAstigmatism correction with toric IOL: analysis of visual performance, position, and wavefront error.
PURPOSE To evaluate astigmatism correction, visual performance, intraocular lens (IOL) position, and wavefront error after implantation of toric IOLs in patients with cataract. METHODS This prospective study comprised 30 eyes of 30 patients with cataract who were candidates for phacoemulsification and implantation of the AcrySof toric IOL (Alcon Laboratories, Inc., Fort Worth, TX). Mean preop...
متن کاملPrevalence of Corneal Astigmatism in an NHS Cataract Surgery Practice in Northern Ireland
PURPOSE Post-operative corneal astigmatism following cataract surgery can leave the patient with visual impairment. Correcting it at the time of surgery with a toric intraocular lens (TIOL) can give patients a better final visual outcome. The purpose was to determine the prevalence of corneal astigmatism in a cataract population and assess the demand for TIOL. METHODS Keratometric data was co...
متن کامل