Rotational Stability After Nanoflex Collamer Toric Intraocular Lens Implantation in Astigmatic Patients

NCT02412215 | Unknown

• 1 other identifier: 0026769
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to assess the rotational stability of the new collameric Nanoflex toric intraocular lens (T-IOL) by STAAR inserted in astigmatic patients after cataract surgery. The purpose of this study is also to determine whether the use of a toric intraocular lens (T-IOL) improves visual acuity.

Conditions

Astigmatism

Outcome Measures

Primary Outcomes (1)

• Change in rotational stability of the toric intraocular lens (T-IOL).

  The misalignment of the lens is defined as the difference (Δ) between the intended axis and the actual axis of the new collameric Nanoflex T-IOL by STAAR.

  Change of rotational stability at 1 day, 1 week, 1 month, 3 months, 6 months, 12 months and 18 months after surgery.

Secondary Outcomes (1)

• Correction of the astigmatism.

  Change in visual acuity at 1 day, 1 week, 1 month, 3 months, 6 months, 12 months and 18 months after surgery

Study Arms (1)

Toric Nanoflex IOL

EXPERIMENTAL

Phacoemulsification with toric Nanoflex IOL implantation

Procedure: Phacoemulsification with toric Nanoflex IOL implantation; Device: NanoFlex toric Intraocular Lens

Interventions

Phacoemulsification with toric Nanoflex IOL implantation PROCEDURE

A self-sealing incision is made with a 2.2mm knife at 110°. Phacoemulsification is performed. The foldable nanoFlex toric IOL is injected in the capsular bag using the nanoPoint single-use injector system (STAAR) or 1620 sofTip Injector (ASICO). The IOL is rotated to align the cylinder axis with the steep corneal meridian using Z align function by Callisto Eye. Every movement of the IOL axis marks are noted.

Toric Nanoflex IOL

NanoFlex toric Intraocular Lens DEVICE

Toric Nanoflex IOL

Eligibility Criteria

• Age: 60 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients of 60 years of age ore more
• Cataract
• Corneal astigmatism of 1 diopter (D) or more

You may not qualify if:

• Primary or secondary pathological conditions of the cornea
• Zonular fibres pathologies (phacodonesis, pseudoexfoliation syndrome)
• Irregular astigmatism (corneal scar, keratoconus, pterygium)
• Traumatic cataract
• Previous ocular surgery
• Complications during cataract surgery

Sponsors & Collaborators

• University of Turin, Italy: lead

Study Sites (1)

Ophthalmology Institute, University of Turin

Turin, 10138, Italy

RECRUITING

Related Publications (33)

• Ferrer-Blasco T, Montes-Mico R, Peixoto-de-Matos SC, Gonzalez-Meijome JM, Cervino A. Prevalence of corneal astigmatism before cataract surgery. J Cataract Refract Surg. 2009 Jan;35(1):70-5. doi: 10.1016/j.jcrs.2008.09.027.

  PMID: 19101427 BACKGROUND

• Rashad KM. Laser in situ keratomileusis for myopic astigmatism. J Refract Surg. 1999 Nov-Dec;15(6):653-60. doi: 10.3928/1081-597X-19991101-09.

  PMID: 10590003 BACKGROUND

• Novis C. Astigmatism and toric intraocular lenses. Curr Opin Ophthalmol. 2000 Feb;11(1):47-50. doi: 10.1097/00055735-200002000-00007.

  PMID: 10724827 BACKGROUND

• Chang DF. Early rotational stability of the longer Staar toric intraocular lens: fifty consecutive cases. J Cataract Refract Surg. 2003 May;29(5):935-40. doi: 10.1016/s0886-3350(02)01843-6.

  PMID: 12781279 BACKGROUND

• Lane SS, Burgi P, Milios GS, Orchowski MW, Vaughan M, Schwarte E. Comparison of the biomechanical behavior of foldable intraocular lenses. J Cataract Refract Surg. 2004 Nov;30(11):2397-402. doi: 10.1016/j.jcrs.2004.03.041.

  PMID: 15519095 BACKGROUND

• Lombardo M, Carbone G, Lombardo G, De Santo MP, Barberi R. Analysis of intraocular lens surface adhesiveness by atomic force microscopy. J Cataract Refract Surg. 2009 Jul;35(7):1266-72. doi: 10.1016/j.jcrs.2009.02.029.

  PMID: 19545819 BACKGROUND

• Lane SS, Ernest P, Miller KM, Hileman KS, Harris B, Waycaster CR. Comparison of clinical and patient-reported outcomes with bilateral AcrySof toric or spherical control intraocular lenses. J Refract Surg. 2009 Oct;25(10):899-901. doi: 10.3928/1081597X-20090617-05. Epub 2009 Oct 12.

  PMID: 19835331 BACKGROUND

• Koshy JJ, Nishi Y, Hirnschall N, Crnej A, Gangwani V, Maurino V, Findl O. Rotational stability of a single-piece toric acrylic intraocular lens. J Cataract Refract Surg. 2010 Oct;36(10):1665-70. doi: 10.1016/j.jcrs.2010.05.018.

  PMID: 20870111 BACKGROUND

• Entabi M, Harman F, Lee N, Bloom PA. Injectable 1-piece hydrophilic acrylic toric intraocular lens for cataract surgery: efficacy and stability. J Cataract Refract Surg. 2011 Feb;37(2):235-40. doi: 10.1016/j.jcrs.2010.08.040.

  PMID: 21241904 BACKGROUND

• Visser N, Bauer NJ, Nuijts RM. Toric intraocular lenses: historical overview, patient selection, IOL calculation, surgical techniques, clinical outcomes, and complications. J Cataract Refract Surg. 2013 Apr;39(4):624-37. doi: 10.1016/j.jcrs.2013.02.020.

  PMID: 23522584 BACKGROUND

• Shimizu K, Misawa A, Suzuki Y. Toric intraocular lenses: correcting astigmatism while controlling axis shift. J Cataract Refract Surg. 1994 Sep;20(5):523-6. doi: 10.1016/s0886-3350(13)80232-5.

  PMID: 7996408 BACKGROUND

• Till JS, Yoder PR Jr, Wilcox TK, Spielman JL. Toric intraocular lens implantation: 100 consecutive cases. J Cataract Refract Surg. 2002 Feb;28(2):295-301. doi: 10.1016/s0886-3350(01)01035-5.

  PMID: 11821213 BACKGROUND

• Dick HB, Krummenauer F, Trober L. [Compensation of corneal astigmatism with toric intraocular lens: results of a multicentre study]. Klin Monbl Augenheilkd. 2006 Jul;223(7):593-608. doi: 10.1055/s-2006-926652. German.

  PMID: 16855943 BACKGROUND

• Stewart CM, McAlister JC. Comparison of grafted and non-grafted patients with corneal astigmatism undergoing cataract extraction with a toric intraocular lens implant. Clin Exp Ophthalmol. 2010 Nov;38(8):747-57. doi: 10.1111/j.1442-9071.2010.02336.x.

  PMID: 20497428 BACKGROUND

• Chang DF. Comparative rotational stability of single-piece open-loop acrylic and plate-haptic silicone toric intraocular lenses. J Cataract Refract Surg. 2008 Nov;34(11):1842-7. doi: 10.1016/j.jcrs.2008.07.012.

  PMID: 19006728 BACKGROUND

• Alio JL, Agdeppa MC, Pongo VC, El Kady B. Microincision cataract surgery with toric intraocular lens implantation for correcting moderate and high astigmatism: pilot study. J Cataract Refract Surg. 2010 Jan;36(1):44-52. doi: 10.1016/j.jcrs.2009.07.043.

  PMID: 20117704 BACKGROUND

• Bachernegg A, Ruckl T, Riha W, Grabner G, Dexl AK. Rotational stability and visual outcome after implantation of a new toric intraocular lens for the correction of corneal astigmatism during cataract surgery. J Cataract Refract Surg. 2013 Sep;39(9):1390-8. doi: 10.1016/j.jcrs.2013.03.033. Epub 2013 Jul 2.

  PMID: 23827765 BACKGROUND

• Bascaran L, Mendicute J, Macias-Murelaga B, Arbelaitz N, Martinez-Soroa I. Efficacy and stability of AT TORBI 709 M toric IOL. J Refract Surg. 2013 Mar;29(3):194-9. doi: 10.3928/1081597X-20130129-02.

  PMID: 23446016 BACKGROUND

• Chassain C. [Evaluation of visual performance after implantation of a double C-Loop toric intraocular lens]. J Fr Ophtalmol. 2014 Sep;37(7):507-13. doi: 10.1016/j.jfo.2014.02.007. Epub 2014 Aug 13. French.

  PMID: 25127702 BACKGROUND

• Waltz KL, Featherstone K, Tsai L, Trentacost D. Clinical outcomes of TECNIS toric intraocular lens implantation after cataract removal in patients with corneal astigmatism. Ophthalmology. 2015 Jan;122(1):39-47. doi: 10.1016/j.ophtha.2014.06.027. Epub 2014 Nov 18.

  PMID: 25444352 BACKGROUND

• Nguyen TM, Miller KM. Digital overlay technique for documenting toric intraocular lens axis orientation. J Cataract Refract Surg. 2000 Oct;26(10):1496-504. doi: 10.1016/s0886-3350(00)00442-9.

  PMID: 11033397 BACKGROUND

• Rozema JJ, Gobin L, Verbruggen K, Tassignon MJ. Changes in rotation after implantation of a bag-in-the-lens intraocular lens. J Cataract Refract Surg. 2009 Aug;35(8):1385-8. doi: 10.1016/j.jcrs.2009.03.037.

  PMID: 19631125 BACKGROUND

• Weinand F, Jung A, Stein A, Pfutzner A, Becker R, Pavlovic S. Rotational stability of a single-piece hydrophobic acrylic intraocular lens: new method for high-precision rotation control. J Cataract Refract Surg. 2007 May;33(5):800-3. doi: 10.1016/j.jcrs.2007.01.030.

  PMID: 17466851 BACKGROUND

• Shah GD, Praveen MR, Vasavada AR, Rampal NV, Vasavada VA, Asnani PK, Pandita D. Software-based assessment of postoperative rotation of toric intraocular lens. J Cataract Refract Surg. 2009 Mar;35(3):413-8. doi: 10.1016/j.jcrs.2008.10.057.

  PMID: 19251130 BACKGROUND

• Cha D, Kang SY, Kim SH, Song JS, Kim HM. New axis-marking method for a toric intraocular lens: mapping method. J Refract Surg. 2011 May;27(5):375-9. doi: 10.3928/1081597X-20101005-01. Epub 2010 Oct 15.

  PMID: 20954592 BACKGROUND

• Sanders DR, Sarver EJ, Cooke DL. Accuracy and precision of a new system for measuring toric intraocular lens axis rotation. J Cataract Refract Surg. 2013 Aug;39(8):1190-5. doi: 10.1016/j.jcrs.2013.06.006.

  PMID: 23889866 BACKGROUND

• Patel CK, Ormonde S, Rosen PH, Bron AJ. Postoperative intraocular lens rotation: a randomized comparison of plate and loop haptic implants. Ophthalmology. 1999 Nov;106(11):2190-5; discussion 2196. doi: 10.1016/S0161-6420(99)90504-3.

  PMID: 10571358 BACKGROUND

• Chua WH, Yuen LH, Chua J, Teh G, Hill WE. Matched comparison of rotational stability of 1-piece acrylic and plate-haptic silicone toric intraocular lenses in Asian eyes. J Cataract Refract Surg. 2012 Apr;38(4):620-4. doi: 10.1016/j.jcrs.2011.10.037. Epub 2012 Jan 31.

  PMID: 22296842 BACKGROUND

• Prinz A, Neumayer T, Buehl W, Vock L, Menapace R, Findl O, Georgopoulos M. Rotational stability and posterior capsule opacification of a plate-haptic and an open-loop-haptic intraocular lens. J Cataract Refract Surg. 2011 Feb;37(2):251-7. doi: 10.1016/j.jcrs.2010.08.049.

  PMID: 21241906 BACKGROUND

• Mamalis N, Omar O, Veiga J, Tanner D, Pirayesh A, Fernquist DS. Comparison of two plate-haptic intraocular lenses in a rabbit model. J Cataract Refract Surg. 1996;22 Suppl 2:1291-5. doi: 10.1016/s0886-3350(96)80087-3.

  PMID: 9051519 BACKGROUND

• Sacu S, Findl O, Linnola RJ. Optical coherence tomography assessment of capsule closure after cataract surgery. J Cataract Refract Surg. 2005 Feb;31(2):330-6. doi: 10.1016/j.jcrs.2004.04.057.

  PMID: 15767154 BACKGROUND

• Kim MH, Chung TY, Chung ES. Long-term efficacy and rotational stability of AcrySof toric intraocular lens implantation in cataract surgery. Korean J Ophthalmol. 2010 Aug;24(4):207-12. doi: 10.3341/kjo.2010.24.4.207. Epub 2010 Aug 3.

  PMID: 20714383 BACKGROUND

• Gomez-Bastar A, Jaimes M, Graue-Hernandez EO, Ramirez-Luquin T, Ramirez-Miranda A, Navas A. Long-term refractive outcomes of posterior chamber phakic (spheric and toric implantable collamer lens) intraocular lens implantation. Int Ophthalmol. 2014 Jun;34(3):583-90. doi: 10.1007/s10792-013-9860-1. Epub 2013 Oct 11.

  PMID: 24114502 BACKGROUND

MeSH Terms

Conditions

Astigmatism

Interventions

Phacoemulsification

Condition Hierarchy (Ancestors)

Refractive Errors; Eye Diseases

Intervention Hierarchy (Ancestors)

Cataract Extraction; Refractive Surgical Procedures; Ophthalmologic Surgical Procedures; Surgical Procedures, Operative; Ultrasonic Surgical Procedures

Study Officials

• Antonio M Fea, MD, PhD

  Department of Surgical Sciences, Ophthalmology Institute, University of Turin

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Antonio M Fea, MD, PhD

CONTACT

+39 011 566 6039; antoniomfea@gmail.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Antonio Fea MD. PhD

Study Record Dates

• First Submitted: March 29, 2015
• First Posted: April 9, 2015
• Study Start: March 1, 2015
• Primary Completion: March 1, 2017
• Study Completion: September 1, 2017
• Last Updated: April 9, 2015

Record last verified: 2015-04

Locations

IT (1)