|
|
|
| Comparison between Verion Digital and Manual Marking for Toric Intraocular Lenses |
| Bei Zhang,Guohua Deng,Dong Zhou,Yi Jiang |
| Department of Ophthalmology, the Third People's Hospital of Changzhou, Changzhou 213003, China |
|
|
|
|
Abstract Objective: To compare the clinical outcome of digital and manual marking for toric intraocular lens (IOL) implantation. Methods: This prospective randomized control study included one eye each of 80 patients underwent cataract surgery with coexisting corneal astigmatism of more than 1.0 diopter (D).The eyes were randomly assigned to two groups. The observation group, 40 eyes, underwent Verion system assisted phacoemulsification and toric IOL implantation. The control group, 40 eyes, underwent toric IOL implantation with manual slit-lamp assisted preoperative marking. We recorded the uncorrected distance visual acuity (UCDVA), best corrected distance visual acuity (BCDVA), and corneal astigmatism before and after surgery, as well as the anticipated and observed residual astigmatism. The follow-up time was 3 months. Means and standard deviations were calculated. Data were performed by t-test, chi-square tests.Results: The mean postoperative UCDVA for the observation group was 0.11 ± 0.11 log minimum angle of resolution (logMAR), and for the control group it was 0.13 ± 0.13 logMAR (t=-0.96, P=0.34). The mean deviation from the targeted induced astigmatism (TIA) for the observation group was 0.12 ± 0.11 D and for the control group it was 0.21 ± 0.12 D (t=-3.71, P=0.001). The mean postoperative toric IOL misalignment measured by the slit lamp was 2.2° ± 1.6° for the observation group and 4.6° ± 3.0° for the control group
(t=-3.69, P=0.001). Conclusions: The intraoperative digital guidance of the Verion system provided better toric IOL alignment than did the manual slit-lamp assisted alignment. The Verion system resulted in less postoperative TIA and less postoperative toric IOL misalignment than did the manual-marking technique.
|
|
Received: 16 October 2017
|
| Fund: Science and Technological Support Plan (Development) of Changzhou Technology Bureau (CE20175039); Major Scientific and Technological Project of Commission of Health and Family Planning Of Changzhou, Jiangsu Province (ZD201511); Guidance Project of Changzhou Science and Technology
Bureau (2016356) |
|
Corresponding Authors:
Guohua Deng, Department of Ophthalmology, the Third People's Hospital of Changzhou, Changzhou 213003, China (Email: czdgh1975@sina.com)
|
|
|
|
| [1] |
管怀进. 我国防盲与眼科流行病学研究的现状及发展. 中华眼科杂志, 2010, 46(10): 938-943. DOI: 10.3760/cma.j.issn.0412-4081.2010.10.014.
|
| [2] |
Kim H, Whang WJ, Joo CK. Corneal Astigmatism in Patients After Cataract Surgery: A 10-Year Follow-up Study. J Refract Surg, 2016, 32(6): 404-409. DOI: 10.3928/1081597X-
|
| 20 |
160303-01.
|
| [3] |
Popp N, Hirnschall N, Maedel S, et al. Evaluation of 4 corneal astigmatic marking methods. J Cataract Refract Surg, 2012,38(12): 2094-2099. DOI: 10.1016/j.jcrs.2012.07.039.
|
| [4] |
Nichamin LD. Astigmatism control. Ophthalmol Clin North Am,2006, 19(4): 485-493. DOI: 10.1016/j.ohc.2006.07.004.
|
| [5] |
Villegas EA, Alcon E, Artal P. Minimum amount of astigmatism that should be corrected. J Cataract Refract Surg, 2014, 40(1):13-19. DOI: 10.1016/j.ohc.2006.07.004.
|
| [6] |
Holland E, Lane S, Horn JD, et al. The AcrySof Toric intraocular lens in subjects with cataracts and corneal astigmatism: a randomized, subject-masked, parallel-group, 1-year study.Ophthalmology, 2010, 117(11): 2104-2111. DOI: 10.1016/j.ophtha.2010.07.033.
|
| [7] |
Ma JJ, Tseng SS. Simple method for accurate alignment in toric phakic and aphakic intraocular lens implantation. J Cataract Refract Surg, 2008, 34(10): 1631-1636. DOI: 10.1016/
|
| 20 |
160303-01.
|
| [3] |
Popp N, Hirnschall N, Maedel S, et al. Evaluation of 4 corneal astigmatic marking methods. J Cataract Refract Surg, 2012,38(12): 2094-2099. DOI: 10.1016/j.jcrs.2012.07.039.
|
| [4] |
Nichamin LD. Astigmatism control. Ophthalmol Clin North Am,2006, 19(4): 485-493. DOI: 10.1016/j.ohc.2006.07.004.
|
| [5] |
Villegas EA, Alcon E, Artal P. Minimum amount of astigmatism that should be corrected. J Cataract Refract Surg, 2014, 40(1):13-19. DOI: 10.1016/j.ohc.2006.07.004.
|
| [6] |
Holland E, Lane S, Horn JD, et al. The AcrySof Toric intraocular lens in subjects with cataracts and corneal astigmatism: a randomized, subject-masked, parallel-group, 1-year study.Ophthalmology, 2010, 117(11): 2104-2111. DOI: 10.1016/j.ophtha.2010.07.033.
|
| [7] |
Ma JJ, Tseng SS. Simple method for accurate alignment in toric phakic and aphakic intraocular lens implantation. J Cataract Refract Surg, 2008, 34(10): 1631-1636. DOI: 10.1016/
|
|
j.jcrs.2008.04.041.
|
| [8] |
Febbraro JL, Koch DD, Khan HN, et al. Detection of static cyclotorsion and compensation for dynamic cyclotorsion in laser in situ keratomileusis. J Cataract Refract Surg, 2010, 36(10):1718-1723. DOI: 10.1016/j.jcrs.2010.05.019.
|
| [9] |
Woo YJ, Lee H, Kim HS, et al. Comparison of 3 marking techniques in preoperative assesment of toric intraocular lenses using a wavefront aberrometer. J Cataract Refract Surg, 2015,41(6): 1232-1240. DOI: 10.1016/j.jcrs.2014.09.045.
|
| [10] |
Cervantes-Coste G, Garcia-Ramirez L, Mendoza-Schuster E, et al. High-cylinder acrylic toric intraocular lenses: a case series of eyes with cataracts and large amounts of corneal astigmatism. J Refract Surg, 2012, 28(4): 302-304. DOI: 10.3928/1081597X-20120208-06.
|
| [11] |
Elhofi AH, Helaly HA. Comparison Between Digital and Manual Marking for Toric Intraocular Lenses: A Randomized Trial. Medicine (Baltimore), 2015, 94(38): e1618. DOI: 10.
|
|
j.jcrs.2008.04.041.
|
| [8] |
Febbraro JL, Koch DD, Khan HN, et al. Detection of static cyclotorsion and compensation for dynamic cyclotorsion in laser in situ keratomileusis. J Cataract Refract Surg, 2010, 36(10):1718-1723. DOI: 10.1016/j.jcrs.2010.05.019.
|
| [9] |
Woo YJ, Lee H, Kim HS, et al. Comparison of 3 marking techniques in preoperative assesment of toric intraocular lenses using a wavefront aberrometer. J Cataract Refract Surg, 2015,41(6): 1232-1240. DOI: 10.1016/j.jcrs.2014.09.045.
|
| [10] |
Cervantes-Coste G, Garcia-Ramirez L, Mendoza-Schuster E, et al. High-cylinder acrylic toric intraocular lenses: a case series of eyes with cataracts and large amounts of corneal astigmatism. J Refract Surg, 2012, 28(4): 302-304. DOI: 10.3928/1081597X-20120208-06.
|
| [11] |
Elhofi AH, Helaly HA. Comparison Between Digital and Manual Marking for Toric Intraocular Lenses: A Randomized Trial. Medicine (Baltimore), 2015, 94(38): e1618. DOI: 10.
|
| 10 |
97/MD.0000000000001618.
|
| [12] |
Carey PJ, Leccisotti A, McGilligan VE, et al. Assessment of toric intraocular lens alignment by a refractive power/corneal analyzer system and slitlamp observation. J Cataract Refract Surg, 2010, 36(2):222-229. DOI: 10.1016/j.jcrs.2009.08.033.
|
| [13] |
Shen P, Zheng Y, Ding X, et al. Biometric measurements in highly myopic eyes. J Cataract Refract Surg, 2013, 39(2): 180-187. DOI: 10.1016/j.jcrs.2012.08.064.
|
| [14] |
Zhang Y, Liang XY, Liu S, et al. Accuracy of intraocular lens power calculation formulas for highly myopic eyes.J Ophthalmol, 2016, 2016: 1917268. DOI: 10.1155/2016/
|
| 10 |
97/MD.0000000000001618.
|
| [12] |
Carey PJ, Leccisotti A, McGilligan VE, et al. Assessment of toric intraocular lens alignment by a refractive power/corneal analyzer system and slitlamp observation. J Cataract Refract Surg, 2010, 36(2):222-229. DOI: 10.1016/j.jcrs.2009.08.033.
|
| [13] |
Shen P, Zheng Y, Ding X, et al. Biometric measurements in highly myopic eyes. J Cataract Refract Surg, 2013, 39(2): 180-187. DOI: 10.1016/j.jcrs.2012.08.064.
|
| [14] |
Zhang Y, Liang XY, Liu S, et al. Accuracy of intraocular lens power calculation formulas for highly myopic eyes.J Ophthalmol, 2016, 2016: 1917268. DOI: 10.1155/2016/
|
| 19 |
17268.
|
| [15] |
Eom Y, Kang SY, Kim HM, et al. The effect of posterior corneal flat meridian and astigmatism amount on the total corneal astigmatism estimated from anterior corneal measurements.Graefes Arch Clin Exp Ophthalmol, 2014, 252(11): 1769-1777.DOI: 10.1007/s00417-014-2737-9.
|
| 19 |
17268.
|
| [15] |
Eom Y, Kang SY, Kim HM, et al. The effect of posterior corneal flat meridian and astigmatism amount on the total corneal astigmatism estimated from anterior corneal measurements.Graefes Arch Clin Exp Ophthalmol, 2014, 252(11): 1769-1777.DOI: 10.1007/s00417-014-2737-9.
|
| [16] |
Savini G, Hoffer KJ, Barboni P, et al. Accuracy of optical biometry combined with Placido disc corneal topography for intraocular lens power calculation. PLoS One, 2017, 12(2): p.
|
|
e0172634. DOI: 10.1371/journal.pone.0172634.
|
| [16] |
Savini G, Hoffer KJ, Barboni P, et al. Accuracy of optical biometry combined with Placido disc corneal topography for intraocular lens power calculation. PLoS One, 2017, 12(2): p.
|
|
e0172634. DOI: 10.1371/journal.pone.0172634.
|
| [17] |
Chan TC, Cheng GP, Wang Z, et al. Vector analysis of corneal astigmatism after combined femtosecond-assisted phacoemulsification and arcuate keratotomy. Am J Ophthalmol,
|
| 20 |
15, 160(2): 250-255. DOI: 10.1016/j.ajo.2015.05.004.
|
| [17] |
Chan TC, Cheng GP, Wang Z, et al. Vector analysis of corneal astigmatism after combined femtosecond-assisted phacoemulsification and arcuate keratotomy. Am J Ophthalmol,
|
| 20 |
15, 160(2): 250-255. DOI: 10.1016/j.ajo.2015.05.004.
|
| [18] |
Davison JA, Potvin R. Refractive cylinder outcomes after calculating toric intraocular lens cylinder power using total corneal refractive power. Clin Ophthalmol, 2015, 9: 1511-1517.
|
|
DOI: 10.2147/OPTH.S88693.
|
| [19] |
管怀进. 重视白内障合并角膜散光的精准手术矫正问题.中华实验眼科杂志, 2017, 35(3): 193-196. DOI: 10.3760/cma.j.issn.2095-0160.2017.03.001.
|
| [18] |
Davison JA, Potvin R. Refractive cylinder outcomes after calculating toric intraocular lens cylinder power using total corneal refractive power. Clin Ophthalmol, 2015, 9: 1511-1517.
|
|
DOI: 10.2147/OPTH.S88693.
|
| [19] |
管怀进. 重视白内障合并角膜散光的精准手术矫正问题.中华实验眼科杂志, 2017, 35(3): 193-196. DOI: 10.3760/cma.j.issn.2095-0160.2017.03.001.
|
|
|
|
