Retrospective study on the changes of refractive state and stability after cataract surgery
10.3980/j.issn.1672-5123.2016.10.19
- VernacularTitle:不同术式白内障术后屈光状态变化规律及稳定性研究
- Author:
Nan-Ming, XIE
;
Xu-Jing, LÜ
- Publication Type:Journal Article
- Keywords:
cataract;
refraction;
refractive stability
- From:
International Eye Science
2016;16(10):1865-1868
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To compare and contrast different operation after cataract patients with refractive change rules. To analyze the patients with refractive stability after cataract surgery, and to provide a reference for cataract patients with clinical surgery after visual quality.
●METHODS: Retrospective study. A total of 126 cases (150 eyes) were selected from Jan. 2014 to Dec. 2015 in Changzhou First People′s Hospital of cataract extraction combined with foldable intraocular lens implantation for cataract patients as the research samples. According to the different operation for three groups, the first group of 42 patients ( 50 eyes ) underwent above 3 mm clear corneal incision;52 cases in group 2 (60 eyes) underwent temporal side 3 mm clear corneal incision. The third group, 32 cases (40 eyes) underwent 3 corner above the scleral tunnel incision. All the cases were measured at different time point in patients with naked eyes far visual acuity, best corrected visual acuity, spherical degree, the degree of astigmatism and astigmatic axial, comparative analysis of after cataract surgery in patients with refractive change regularity and stability of refraction.
●RESULTS: The uncorrected distance visual comparison within the group, and each time point after preoperative differences were significant ( P< 0. 01 ), and the early postoperative period after 1, 3mo significantly different (P<0. 05). Three groups of patients after surgery compared with preoperative uncorrected distance visual acuity improved significantly, and were stable after 1mo. Compare the best corrected distance vision within the group, and each time point after preoperative differences were significant (P<0. 01), postoperative 1wk and after 1, 3d significantly different (P<0. 05), after 1wk and after 1, 3mo was not significantly different ( P > 0. 05 ), three groups of patients were compared with the preoperative best corrected distance visual acuity were increased significantly, and were in stable after 1wk; relatively spherical degree within the array, after 1d and 3d was not significantly different (P>0. 05), hyperopia drift, after 1wk and 1, 3d was significantly different (P<0. 05), after 1wk and 1, 3mo was not significantly different ( P>0. 05 ). Three groups of patients′spherical degrees after 1wk were stabilized. Comparative degree of astigmatism within the array, postoperative compared with preoperative corneal astigmatism were increased 1d after surgery. Corneal astigmatism in each group reached the maximum, and then decreases 1wk and 1d after surgery, compared with postoperative 3d was significantly different ( P<0. 05 ). After 1wk and 1, 3mo was not significantly different ( P>0. 05 ) . Three groups of patients were compared with preoperative astigmatism were significantly increased, and in operation after 1wk were stabilized;astigmatic axis were three groups in the preoperative astigmatism against the rule, the first and third group after 1d, three Tianshun rule astigmatism proportional were increased, and then decreased. Group 2 the- rule astigmatism proportion, after 1wk, 1 and 3mo, the first and third group gradually reduced the proportion of cis regulatory astigmatism, and compared with preoperative increased, increasing the-rule astigmatism group 2 ratio, and increased compared with preoperative.
●CONCLUSION: Above 3 mm the transparent corneal incision, temporal clear corneal incision and above the scleral tunnel incision different surgical postoperative visual acuity are good. lt can be used as a routine surgical procedure in treatment of cataract;phacoemulsification in cataract patients with former majority against the rule astigmatism. After cataract surgery, early refractive state is a state of mild hyperopia and stabilized about 1wk, combined with clinical guide glasses.
