Analysis of six formulas for intraocular lens optic power calculation precision in eyes with axial length of 20-22 mm
Year: 2020, volume 16 Issue: №2 Pages: 638-642
Heading: Ophtalmology Article type: Original article
Authors: Pershin K.B., Pashinova N.F., Likh I.A., Tsygankov A.Yu.
Organization: Ophthalmological clinics «Eximer»
Heading: Ophtalmology Article type: Original article
Authors: Pershin K.B., Pashinova N.F., Likh I.A., Tsygankov A.Yu.
Organization: Ophthalmological clinics «Eximer»
Summary:
The purpose of the study was to conduct comparative analysis of the accuracy of IOL optical power calculation for eyes with an axial length of 20-22 mm and 22-24 mm. Material and Methods. 147 eyes of 104 patients were included in the study. The study group (I) included 56 patients (81 eyes) with short eyes (average axial eye length 21.17±0.56 (20.02-21.98 mm). Comparison group (II) consisted of 48 patients (66 eyes) with a normal axial length of 22.75±0.46 (22.0-23.77) mm. The IOL optical power was calculated using the SRK/T formula, and the retrospective comparison was made using the Hoffer-Q, Holladay 2, Olsen, Haigis and Barrett Universal I formulas. Results. Group I was characterized by statistically insignificant (p<0.05) differences in the average estimation error for Holladay 2, Hoffer-Q, SRK/T, Olsen and Barrett Universal II formulas (0.19±0.14, 0.23±0.08, 0.15±0.09, 0.21±0.13 and 0.17±0.21 D respectively). When using the Haigis formula, the smallest average estimation error was obtained (0.11±0.02), the differences are significant at the trend level (0.05
Keywords: formula for calculating IOL, hyperopia
Bibliography:
1. Gavin EA, Hammond CJ. Intraocular lens power calculation in short eyes. Eye 2008; 22: 935-8.
2. Roh YR, Lee SM, Han YK, et al. Intraocular lens power calculation using lOLMaster and various formulas in short eyes. Korean J Ophthalmol 2011; 25: 151-5.
3. Moschos MM, Chatziralli IP, Koutsandrea С Intraocular lens power calculation in eyes with short axial length. Indian J Ophthalmol 2014; 62: 692-4.
4. Wang J-K, Chang S-W. Optical biometry intraocular lens power calculation using different formulas in patients with different axial lengths. Int J Ophthalmol 2013; 6: 150-4.
5. Pershin KB, Pashinova NF, Tsygankov Alu, et al. IOL optic power calculation in patients with eye axial length 24-28 mm without preceding refractive surgery. Ophthalmology in Russia 2016; 13 (2): 89-96.
6. Pershin KB, Pashinova NF, Tsygankov Alu, et al. Phacoemulsification with IOL implantation in extremely high myopia. Cataract and Refractive Surgery. 2015; 15 (3): 14-21.
7. Carifi G, Aiello F, Zygoura V, et al. Accuracy of the refractive prediction determined by multiple currently available intraocular lens power calculation formulas in small eyes. Am J Ophthalmol 2015; 159: 577-83.
8. Doshi D, Limdi P, Parekh N, et al. A comparative study to assess the predictability of different IOL power calculation formulas in eyes of short and long axial length. J Clin Diagn Res 2017; 11: NC01-NC04.
9. Kane JX, Van Heeden A, Atik A, et al. Intraocular lens power formula accuracy: comparison of 7 formulas. J Cataract Refract Surg 2016; 42: 1490-500.
10. Hoffer KJ, Aramberri J, Haigis W, et al. Protocols for studies of intraocular lens formula accuracy. Am J Ophthalmol 2015; 160:403-5.
11. Gokce SE, Zeiter JH, Weikert MP, et al. Intraocular lens power calculations in short eyes using 7 formulas. J Cataract Refract Surg 2017; 43: 892-7.
| Attachment | Size |
|---|---|
| 2020_02-1_638-642.pdf | 418.33 KB |
Русский
English