Observed Axial Change in Axial High Myopia Eyes after Phacoemulsification
Abstract: Objective: To discuss and observe initial axis oculi changes under the condition of no adjustment in patients with high axial myopia, who underwent phacoemulsification of caligo lentis with in-traocular lens implantation, so as to provide preliminary ideas and plans for the prevention and treatment of myopia in the future. Methodology: 55 cases (83 eyes) with high axial myopia, who received caligo lentis surgery in our hospital from January 2014 to March 2015, were enrolled, with the average age of 65.15 ± 11.23 (40 to 90) years old. There were 28 males and 27 females. All subjects were received overall examinations on their eyes before the surgery, and the length changes of axis oculi were measured and recorded with partial coherence interferometry (PCI) technique of IOL-Master before and after the surgery, which were compared with those of before operation and 1 day, 7 days, 3 months, and 1 year after operation. Rank sum test on the data of completely randomized design, i.e. Wilcoxon’s rank sum test, was used to analyze changes of axis oculi. Result: In comparison of axis oculi lengths before the surgery, the reduced lengths of axis oculi suggest statistical significance (p < 0.001) 1 day, 1 week, 3 months and 1 year after the sur-gery; compared with lengths of axis oculi 1 day after the surgery, the decreased lengths of axis oculi indicate statistical significance (p < 0.001) 1 week, 3 months, and 1 year after the surgery; compared with lengths of axis oculi 1 week after the surgery, no statistical significance is observed in the diminished lengths of axis oculi 3 months and 1 year after the surgery; in comparison of axis oculi lengths 3 months after the surgery, no statistical significance is noticed in the increased lengths of axis oculi 1 year after the surgery (p = 0.001). Conclusion: Patients with high axial myopia have shown stable refraction state and changes of axis oculi after the surgery of phacoemulsification with intraocular lens implantation, which is a superior treatment means.
文章引用: 陈立伦 , 鲍炯琳 , 王文娟 , 管国奇 , 臧 晶 (2016) 轴性高度近视眼白内障超声乳化术后眼轴变化观察。 眼科学， 5， 89-94. doi: 10.12677/HJO.2016.54016
 王幼生, 廖瑞端, 刘泉, 甄兆忠. 现代眼视光学[M]. 广州: 广东科技出版社, 2004: 131-134.
Sayegh, F.N. (2009) Age and Refraction in 46,000 Patients as a Potential Predictor of Refractive Stability after Refractive Surgery. Journal of Refractive Surgery, 25, 747-751.
 Morgan, I. and Megaw, P. (2004) Using Natural STOP Growth Signals to Prevent Excessive Axial Elongation and the Development of Myopia. Annals Academy of Medicine Singapore, 33, 16-20.
Schmid, K.L. and Wildsoet, C.F. (1996) Effects on the Compensatory Responses to Positive and Negative Lenses of Intermittent lens Wear and Ciliary Nerve Section in Chicks. Vision Research, 36, 1023-1036.
Troilo, D., Gottlieb, M.D. and Wallman, J. (1987) Visual Deprivation Causes Myopia in Chicks with Optic Nerve Section. Current Eye Research, 6, 993-999.
Winawer, J. and Wallman, J. (2002) Temporal Constraints on Lens Com-pensation in Chicks. Vision Research, 42, 2651-2668.
Huang, J., Hung, L.F. and Smith III, E.L. (2011) Effects of Foveal Ablation on the Pattern of Peripheral Refractive Errors in Normal and Form-Deprived Infant Rhesus Monkeys (Macaca mulatta). Investigative Ophthalmology, 52, 6428- 6434.
Meng, W.H., Butterworth, J., Malecaze, F. and Calvas, P. (2011) Axial Length of Myopia: A Review of Current Research. Ophthalmologica, 225, 127-134.
Brint, S.F. (1994) Refractive Cataract Surgery. International Ophthalmology Clinics, 34, 1-11.
 O’Donnell Jr., F.E. and Maumenee, A.E. (1980) “Unexplained” Visual Loss in Axial Myopia: Cases Caused by Mid Nuclear Sclerotic Cataract. Ophthalmic Surgery, 11, 99-101.
Kubo, E., Kumamtoto, Y., Tsuzuki, S. and Akagi, Y. (2006) Axial Length, Myopia and Severity of Lens Opacity at the Time of Cataract Surgery. Archives of Ophthalmology, 124, 1586-1590.