Biometry and intraocular lens power calculation

Current Opinion in Ophthalmology

Volumn 19, Issue 1, 2008, Pages 13-17

  Lee, Alexander C ^a   Qazi, Mujtaba A ^a   Pepose, Jay S ^a,b  

^a WASHINGTON UNIVERSITY SCHOOL OF MEDICINE   (United States)

^b Pepose Vision Institute   (United States)

Author keywords

Biometry; Cataract surgery; Intraocular lens calculation

Indexed keywords

ANTERIOR EYE CHAMBER DEPTH; BIOMETRY; ECHOGRAPHY; HUMAN; KERATOMETRY; LENS IMPLANT; LENS POWER; MEASUREMENT; OPTICAL COHERENCE TOMOGRAPHY; POSTOPERATIVE CARE; PRIORITY JOURNAL; REFRACTIVE SURGERY; REVIEW; STATISTICAL SIGNIFICANCE;

BIOMETRY; CATARACT; HUMANS; LENS IMPLANTATION, INTRAOCULAR; LENSES, INTRAOCULAR; OPTOMETRY; PROSTHESIS DESIGN; PSEUDOPHAKIA; REFRACTION, OCULAR; REFRACTIVE ERRORS;

EID: 37349012831     PISSN: 10408738     EISSN: None     Source Type: Journal    
DOI: 10.1097/ICU.0b013e3282f1c5ad     Document Type: Review

References (43)

1. Olsen T. Calculation of intraocular lens power: a review. Acta Ophthalmol Scand 2007; 85:472-485. Good summary of factors involved in the calculation of intraocular power.
2. Ossoinig KC. Standardized echography: basic principles, clinical applications, and results. Int Ophthalmol Clin 1979; 19:127-210.
3. Schelenz J, Kammann J. Comparison of contact and immersion technique for axial length measurement and implant power calculation. J Cataract Refract Surg 1989; 15:425-428.
4. Shammas HJF. A comparison of immersion and contact techniques for axial length measurements. J Am Intraocul Implant Soc 1984; 10:444-447.
5. Olsen T, Nielsen PJ. Immersion versus contact technique in the measurement of axial length by ultrasound. Acta Ophthalmol 1989; 67:101-102.
6. Hitzenberger CK, Drexler W, Dolezal C, et al. Measurement of the axial length of cataract eyes by laser Doppler interferometry. Invest Ophthalmol Vis Sci 1993; 34:1886-1893.
7. Kiss B, Findl O, Menapace R, et al. Refractive outcome of cataract surgery using partial coherence interferometry and ultrasound biometry: clinical feasibility study of a commercial prototype II. J Cataract Refract Surg 2002; 28:230-234.
8. Haigis W, Lege B, Miller N, et al. Comparison of immersion ultrasound biometry and partial coherence interferometry for intraocular lens calculation according to Haigis. Graefes Arch Clin Exp Ophthalmol 2000; 238:765-773.
9. Olsen T. Improved accuracy of intraocular lens power calculation with the Zeiss IOL Master. Acta Ophthalmol Scand 2007; 85:84-87. Study that shows the accuracy of IOL power calculation can be improved with IOL Master and current ACD prediction algorithms.
10. Lam AK, Chan R, Pang PC. The repeatability and accuracy of axial length and anterior chamber depth measurements from the IOLMaster. Ophthalmic Physiol Opt 2001; 21:477-483.
11. Vogel A, Dick HB, Krummenauer F. Reproducibility of optical biometry using partial coherence interferometry: intraobserver and interobserver reliability. J Cataract Refract Surg 2001; 27:1961-1968.
12. Chylack LT, Wolfe JK, Singer DM, et al. The Longitudinal Study of Cataract Study Group: the Lens Opacities Classification System III. Arch Ophthalmol 1993; 111:831-836.
13. Prinz A, Neumayer T, Buehl W, et al. Influence of severity of nuclear cataract on optical biometry. J Cataract Refract Surg 2006; 32:1161-1165. This study showed that the severity of nuclear cataract did not alter the axial length measurements obtained with the IOL Master.
14. Connors IR, Boseman IP, Olson RJ. Accuracy and reproducibility of biometry using partial coherence interferometry. J Cataract Refract Surg 2002; 28:235-238.
15. Kiss B, Findl O, Menapace R, Wirtitsch M, et al. Biometry of cataractous eyes using partial coherence interferometry. J Cataract Refract Surg 2002; 28:224-229.
16. Rajan MS, Keilhorn I, Bell JA. Partial coherence laser interferometry vs conventional ultrasound biometry in intraocular lens power calculations. Eye 2002; 16:552-556.
17. Freeman G, Pesudovs K. The impact of cataract severity on measurement acquisition with IOL Master. Acta Ophthalmol Scand 2005; 83:439-442.
18. Giers U, Epple C. Comparison of A-scan device accuracy. J Cataract Refract Surg 1990; 16:235-242.
19. Norrby S, Lydahl E, Koranyi G, Taube M. Comparison of 2 A-scans. J Cataract Refract Surg 2003; 29:95-99.
20. Németh J, Fekete O, Pesztenlehrer N. Optical and ultrasound measurement of axial length and anterior chamber depth for intraocular lens power calculation. J Cataract Refract Surg 2003; 29:85-88.
21. Vetrugno M, Cardascia N, Cardia L. Anterior chamber depth measured by two methods in myopic and hyperopic phakic IOL implant. Br J Ophthalmol 2000; 84:1113-1116.
22. Auffarth GU, Tetz MR, Biazid Y, Volcker HE. Measuring anterior chamber depth with Orbscan Topography System. J Cataract Refract Surg 1997; 23:1351-1355.
23. Reddy AR, Pande MV, Finn P, El-Gogary H. Comparative estimation of anterior chamber depth by ultrasonography, Orbscan II, and IOL Master. J Cataract Refract Surg 2004; 30:1268-1271.
24. Koranyi G, Lydahl E, Norrby S, Taube M. Anterior chamber depth measurement: A-scan versus optical methods. J Cataract Refract Surg 2002; 28:243-247.
25. Nemeth G, Vajas A, Kolozsvari B, et al. Anterior chamber depth measurements in phakic and pseudophakic eyes: Pentacam versus ultrasound device. J Cataract Refract Surg 2006; 32:1331-1335. ACD measured with the Pentacam and ultrasound were comparable; however, further evaluation of ACD data is necessary in pseudophakic patients.
26. Lackner B, Schmidinger G, Skorpik C. Validity and repeatability of anterior chamber depth measurements with Pentacam and Orbscan. Optom Vis Sci 2005; 82:858-861.
27. Sacu S, Findl O, Buehl W, et al. Optical biometry of the anterior eye segment: interexaminer and intraexaminer reliability of ACMaster. J Cataract Refract Surg 2005; 31:2334-2339.
28. Lavanya R, Teo L, Friedman DS, et al. Comparison of anterior chamber depth measurements using the IOLMaster, scanning peripheral anterior chamber depth analyser, and anterior segment optical coherence tomography. Br J Ophthalmol 2007; 91:1023-1026. The study showed that differences in ACD measurements were small between the anterior segment OCT and IOL Master. These differences were unlikely to be clinically important.
29. Nemeth G, Vajas A, Tsorbatzoglou A, et al. Assessment and reproducibility of anterior chamber depth measurement with anterior segment optical coherence tomography compared with immersion ultrasonography. J Cataract Refract Surg 2007; 33:443-447. Repeatability of ACD measurements was better with anterior segment OCT than with immersion ultrasound and reproducibility was equal.
30. Seitz B, Langenbucher A, Nguyen NX, et al. Underestimation of intraocular lens power for cataract surgery after myopic photorefractive keratectomy. Ophthalmology 1999; 106:693-702.
31. Gimbel H, Sun R. Accuracy and predictability of intraocular lens power calculation after laser in situ keratomileusis. J Cataract Refract Surg 2001; 27:571-576.
32. Odenthal MT, Eggink CA, Melles G, et al. Clinical and theoretical results of intraocular lens power calculation for cataract surgery after photorefractive keratectomy for myopia. Arch Ophthalmol 2002; 120:431-438.
33. Argento C, Cosentino MJ, Badoza D. Intraocular lens power calculation after refractive surgery. J Cataract Refract Surg 2003; 29:1346-1351.
34. Seitz B, Langenbucher A. Intraocular lens power calculation in eyes after corneal refractive surgery. J Cataract Refract Surg 2000; 16:349-361.
35. Qazi MA, Cua IY, Roberts CJ, et al. Determining corneal power using Orbscan II videokeratography for intraocular lens calculation after excimer laser surgery for myopia. J Cataract Refract Surg 2007; 33:21-30. Study that show the Orbscan II axial length and optical power can be used to more accurately predict true corneal power.
36. Cua IY, Qazi MA, Lee SF, et al. Intraocular lens calculations in patients with corneal scarring and irregular astigmatism. J Cataract Refract Surg 2003; 29:1352-1357.
37. Holladay JT, Prager TC, Ruiz RS, et al. Improving the predictability of intraocular lens power calculations. Arch Ophthalmol 1986; 104:539-541.
38. Koch DD, Liu JF, Hyde LL, et al. Refractive complications of cataract surgery after radial keratotomy. Am J Ophthalmol 1989; 108:676-682.
39. Zeh WG, Koch DD. Comparison of contact lens over-refraction and standard keratometry for measuring corneal curvature in eyes with lenticular opacity. J Cataract Refract Surg 1999; 25:898-903.
40. Seitz B, Langenbucher A. Intraocular lens power calculation in eyes after corneal refractive surgery. J Refract Surg 2000; 16:349-361.
41. Aramberri J. Intraocular lens power calculation after corneal refractive surgery: double-K method. J Cataract Refract Surg 2003; 29:2063-2068.
42. Borasio E, Stevens J, Smith GT. Estimation of true corneal power after keratorefractive surgery in eyes requiring cataract surgery: BESSt formula. J Cataract Refract Surg 2006; 32:2004-2014. The BESSt formula may be a useful technique to more accurately predict IOL power after keratorefractive surgery.
43. Gelender H. Orbscan II-assisted intraocular lens power calculation for cataract surgery following myopic laser in situ keratomileusis. Trans Am Ophthalmol Soc 2006; 104:402-413. The effective corneal power measured by 1.5-mm Orbscan II in the laser in-situ keratomileusis-altered cornea can be used to accurately predict the IOL power.