J Korean Ophthalmol Soc.  2012 Dec;53(12):1789-1793. 10.3341/jkos.2012.53.12.1789.

Comparison of Anterior Chamber Parameter and Refractive Change between Three-Piece and Single-Piece Aspheric Intraocular Lenses

• Kim HS
• Lee DM
• Ahn JM
• Kim EK
• Kim TI

• KMID: 2216392
• DOI: http://doi.org/10.3341/jkos.2012.53.12.1789

Abstract

PURPOSE
To compare the anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) and refractive change after cataract surgery between 3-piece and 1-piece aspheric intraocular lens (IOL) implantation.
METHODS
The present study consisted of 16 patients (25 eyes) having 3-piece aspheric Tecnis(R) ZA9003 IOL and 21 patients (30 eyes) having 1-piece aspheric Tecnis(R) ZCB00 IOL. The ACD, ACV, and ACA were measured using an anterior eye segment analysis system (Pentacam, Oculus, Wetzlar, Germany) preoperatively and postoperatively 1 week and 1 month. Refractive outcomes were evaluated using an autokeratometer.
RESULTS
When comparing the 3-piece (Tecnis(R) ZA9003) and 1-piece (Tecnis(R) ZCB00) IOL with the same optic, ACD, ACV, and AVA increased significantly after cataract surgery. The 1-piece IOL showed deeper ACD than the 3-piece IOL at postoperative 1 week and 1 month. Postoperative refraction showed slight myopic shift compared with target diopter, but was stable in both groups.
CONCLUSIONS
There was significant increase in ACD, ACV, and ACA after cataract surgery in both IOL-inserted groups. Results showed stable refraction after cataract surgery in both groups. Consideration of the A-constant will be needed because of myopic change with the 1-piece IOL.

Keyword

Anterior chamber depth; Aspheric IOL; Refraction; Tecnis(R) ZA9003; Tecnis(R) ZCB00

MeSH Terms

Anterior Chamber
Anterior Eye Segment
Cataract
Humans
Lenses, Intraocular

Figure

• 

  Figure 1 Mean anterior chamber depth in the three-piece and the single-piece IOL groups after cataract surgery.

• 

  Figure 2 Mean spherical equivalent in the single piece and the three piece IOL groups after cataract surgery.

Reference

1. Oshika T, Masuda K, Hayashi F, et al. Current trends in cataract and refractive surgery in Japan--1994 survey. Jpn J Ophthalmol. 1995. 39:265–273.

2. Caporossi A, Casprini F, Tosi GM, Baiocchi S. Preliminary results of cataract extraction with implantation of a single-piece AcrySof intraocular lens. J Cataract Refract Surg. 2002. 28:652–655.

3. Lane SS, Burgi P, Milios GS, et al. Comparison of the biomechanical behavior of foldable intraocular lenses. J Cataract Refract Surg. 2004. 30:2397–2402.

4. Ohtani S, Miyata K, Samejima T, et al. Intraindividual comparison of aspherical and spherical intraocular lenses of same material and platform. Ophthalmology. 2009. 116:896–901.

5. Yamaguchi T, Negishi K, Ono T, et al. Feasibility of spherical aberration correction with aspheric intraocular lenses in cataract surgery based on individual pupil diameter. J Cataract Refract Surg. 2009. 35:1725–1733.

6. Kim SW, Ahn H, Kim EK, Kim TI. Comparison of higher order aberrations in eyes with aspherical or spherical intraocular lenses. Eye (Lond). 2008. 22:1493–1498.

7. Wahba SS, Riad RF, Morkos FF, et al. Visual performance of the Tecnis one-piece lens ZCB00. Clin Ophthalmol. 2011. 5:1803–1808.

8. Nejima R, Miyai T, Kataoka Y, et al. Prospective intrapatient comparison of 6.0-millimeter optic single-piece and 3-piece hydrophobic acrylic foldable intraocular lenses. Ophthalmology. 2006. 113:585–590.

9. Behrouz MJ, Kheirkhah A, Hashemian H, Nazari R. Anterior segment parameters: comparison of 1-piece and 3-piece acrylic foldable intraocular lenses. J Cataract Refract Surg. 2010. 36:1650–1655.

10. Hayashi K, Hayashi H, Nakao F, Hayashi F. Changes in anterior chamber angle width and depth after intraocular lens implantation in eyes with glaucoma. Ophthalmology. 2000. 107:698–703.

11. Arai M, Ohzuno I, Zako M. Anterior chamber depth after posterior chamber intraocular lens implantation. Acta Ophthalmol (Copenh). 1994. 72:694–697.

12. Olsen T. Sources of error in intraocular lens power calculation. J Cataract Refract Surg. 1992. 18:125–129.

13. Chae JK, Jang JW, Choi TH, Lee HB. Changes in refraction and anterior chamber depth according to the type of the intraocular lenses. J Korean Ophthalmol Soc. 2006. 47:1935–1942.