Prospective Evaluation of a New IOL Power Formula in Eyes Measured By Sum-of-Segments Biometry.
| Title: | Prospective Evaluation of a New IOL Power Formula in Eyes Measured By Sum-of-Segments Biometry. |
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| Authors: | Shammas HJ; From the Department of Ophthalmology (H.J.S., M.C.S.), Keck School of Medicine of USC, Los Angeles, California, USA. Electronic address: hshammas@shammaseye.com.; Shammas MC; From the Department of Ophthalmology (H.J.S., M.C.S.), Keck School of Medicine of USC, Los Angeles, California, USA; Shammas Eye Medical Center (M.C.S.), Lynwood, California, USA.; Multack S; Multack Eye Care (S.M.), Olympia Fields, Illinois, USA.; Kandavel GR; Stein Eye at UCLA (G.R.K.), Los Angeles, California, USA; Colvard-Kandavel Eye Center (G.R.K., J.D.), Encino, California, USA.; Dredge J; Colvard-Kandavel Eye Center (G.R.K., J.D.), Encino, California, USA.; Melendez R; School of Medicine and the Juliette Eye Institute (R.M.), University of New Mexico Health Science Cener, Albuquerque, New Mexico, USA.; Hall B; Sengi (B.H.), Penniac, New Brunswick, Canada. |
| Source: | American journal of ophthalmology [Am J Ophthalmol] 2025 Oct; Vol. 278, pp. 149-155. Date of Electronic Publication: 2025 Jun 19. |
| Publication Type: | Journal Article; Multicenter Study; Comparative Study |
| Language: | English |
| Journal Info: | Publisher: Elsevier Science Country of Publication: United States NLM ID: 0370500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1891 (Electronic) Linking ISSN: 00029394 NLM ISO Abbreviation: Am J Ophthalmol Subsets: MEDLINE |
| Imprint Name(s): | Publication: 1999- : New York, NY : Elsevier Science; Original Publication: [Chicago, etc., Ophthalmic Pub. Co., etc.] |
| MeSH Terms: | Biometry*/methods ; Axial Length, Eye*/pathology ; Lenses, Intraocular* ; Lens Implantation, Intraocular* ; Optics and Photonics* ; Phacoemulsification*; Refraction, Ocular/physiology ; Visual Acuity/physiology ; Pseudophakia/physiopathology ; Humans ; Prospective Studies ; Aged ; Male ; Female ; Middle Aged ; Reproducibility of Results ; Aged, 80 and over |
| Abstract: | Purpose: To evaluate the clinical outcomes from cataract surgery in eyes measured with sum-of-segments (SOS) biometry using the new Barrett True Axial Length (BTAL-SOS) formula and compare the potential results with the Barrett Universal II (BUII-SOS) formula.; Design: Prospective, multi-site, multi-surgeon, biometry accuracy study. Four private practice locations in Lynwood, CA, Encino, CA, Olympia Fields, IL, and Albuquerque, NM, USA.; Methods: The expected residual refractions were calculated using the BTAL-SOS formula in 523 eyes after cataract surgery and compared to the potential results with the BUII-SOS formula. All eyes had a final visual acuity ≤0.20 LogMAR and ≤0.75 D of astigmatism.; Results: Mean prediction error (MPE) for the entire series was 0.00±0.27 D with BTAL-SOS compared to 0.00±0.28 D with BUII-SOS (p = 0.06). In 79 eyes longer than 24.50 mm, MPE was - 0.02±0.24 D with BTAL-SOS vs -0.05±0.25 D with BUII-SOS (p = 0.16) and in 73 eyes shorter than 22.50 mm, BTAL-SOS statistically outperformed BU II-SOS (p = 0.03) with a MPE of -0.05±0.31 D vs 0.07±0.36 D. BTAL-SOS prediction error (PE) ≤0.50 D was 96.0% vs 84% in short eyes (AL≤22.00mm), 87.50% vs 81.25% in medium short eyes (AL>22.00mm, 24.50mm, |
| Entry Date(s): | Date Created: 20250621 Date Completed: 20250916 Latest Revision: 20250917 |
| Update Code: | 20260130 |
| DOI: | 10.1016/j.ajo.2025.06.015 |
| PMID: | 40543736 |
| Database: | MEDLINE |
Journal Article; Multicenter Study; Comparative Study