Journal of refractive surgery (Thorofare, N.J. : 1995) · 2016
Corneal Astigmatism in Patients After Cataract Surgery: A 10-Year Follow-up Study.
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Kim Hyojin, Whang Woong-Joo, Joo Choun-Ki
Аннотация
PURPOSE: To report the long-term outcomes of corneal astigmatism after cataract surgery.
METHODS: The study included 55 eyes of 46 patients who underwent cataract surgery with temporal 3-mm clear corneal incisions from January 2001 to December 2003. All patients underwent complete ophthalmological examination including keratometry at the preoperative visit and at 2 months and 10 years after surgery. Only those eyes that underwent a follow-up of 10 years or longer from the time of cataract surgery were enrolled. Arithmetic and vector analyses were performed to obtain the change in corneal astigmatism with advancing age.
RESULTS: The mean age of the patients was 59.11 ± 12.33 years (range: 18 to 75 years), and 58.7% of the patients were women. The mean follow-up period was 131.28 ± 14.36 months. The average magnitudes of surgically induced astigmatism and long-term astigmatism change were 0.66 ± 0.42 and 0.57 ± 0.47 diopters (D), respectively. The vector difference was 0.56 ± 0.55 D at 90° ± 0° between the preoperative and 2-month visits. However, there was no difference in vector values between postoperative 2 months and 10 years (0.00 ± 0.74 D at 0° ± 0°).
CONCLUSIONS: Patients with corneal astigmatism who underwent cataract surgery did not show a long-term against-the-rule change in corneal astigmatism during a 10-year follow-up. These results provide useful information when planning toric intraocular lens implantation in patients with corneal astigmatism. [J Refract Surg. 2016;32(6):404-409.].
METHODS: The study included 55 eyes of 46 patients who underwent cataract surgery with temporal 3-mm clear corneal incisions from January 2001 to December 2003. All patients underwent complete ophthalmological examination including keratometry at the preoperative visit and at 2 months and 10 years after surgery. Only those eyes that underwent a follow-up of 10 years or longer from the time of cataract surgery were enrolled. Arithmetic and vector analyses were performed to obtain the change in corneal astigmatism with advancing age.
RESULTS: The mean age of the patients was 59.11 ± 12.33 years (range: 18 to 75 years), and 58.7% of the patients were women. The mean follow-up period was 131.28 ± 14.36 months. The average magnitudes of surgically induced astigmatism and long-term astigmatism change were 0.66 ± 0.42 and 0.57 ± 0.47 diopters (D), respectively. The vector difference was 0.56 ± 0.55 D at 90° ± 0° between the preoperative and 2-month visits. However, there was no difference in vector values between postoperative 2 months and 10 years (0.00 ± 0.74 D at 0° ± 0°).
CONCLUSIONS: Patients with corneal astigmatism who underwent cataract surgery did not show a long-term against-the-rule change in corneal astigmatism during a 10-year follow-up. These results provide useful information when planning toric intraocular lens implantation in patients with corneal astigmatism. [J Refract Surg. 2016;32(6):404-409.].