Evidence map›Paper›PMID 33626366›Full record

ArticleAmerican journal of ophthalmology2021

A Biomechanical Study of Flanged Intrascleral Haptic Fixation of Three-Piece Intraocular Lenses.

Kevin K Ma, Amy Yuan, Sina Sharifi, Roberto Pineda

Abstract read
In one paragraph

Article in American journal of ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Severe intraocular lens tilt after the Yamane technique.Journal of cataract and refractive surgery · 2025
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Haptic curing with endolaser after lens tilt in the Yamane technique.American journal of ophthalmology case reports · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Kevin K MaFrom the Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, USA.
Amy YuanDepartment of Ophthalmology, University of Washington, Seattle, Washington, USA.
Sina SharifiSchepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA.
Roberto PinedaFrom the Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, USA.. Electronic address: Roberto_Pineda@meei.harvard.edu.

Funding

Generation of suturable artificial cornea from the integration of exfoliated graphene with gelatin glycidyl methacrylateK99EY030553 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI SHARIFI, SINA · 2020 to 2022
$242k
NEI NIH HHS K99 EY030553
6 · The paper itself

Abstract

purposeFlanged intrascleral haptic fixation (FISHF) is a useful method for securing intraocular lenses (IOLs) in eyes without capsular support. Biomechanical studies were conducted to support the use of this technique.

designLaboratory investigation.

methodsHaptics of 3-piece IOLs were passed through cadaveric human sclera using 30- and 27-gauge needles. Flanges were created by melting 1.0 mm from the haptic ends using cautery. The forces required to remove the flanged haptic from the sclera and disinsert the haptic from the optic were measured using a mechanical tester and a custom-fabricated mount.

resultsThe mean FISHF dislocation force using 30-gauge needles was greatest with the CT Lucia 602 (2.04 ± 0.24 newtons [N]) compared to the LI61AO (0.93 ± 0.41 N; P = .001), ZA9003 (0.70 ± 0.34 N; P = <.001), and MA60AC (0.27 ± 0.19 N; P <.001). Using 27-gauge needles with the CT Lucia resulted in a lower dislocation force (0.56 ± 0.36 N; P <.001). The FISHF dislocation force was correlated with the flange-to-needle diameter ratio (r = 0.975). The FISHF dislocation forces of the CT Lucia and LI61AO using 30-gauge needles were not significantly different from their haptic-optic disinsertion forces (P = .79 and .27, respectively). There were no differences in flange diameters between 1.0 mm and 2.0 mm haptic melt lengths across the IOLs (P = .15-.85).

conclusionsThese data strongly support the biomechanical stability of FISHF with the polyvinylidene fluoride haptics of the CT Lucia using small diameter instruments for the creation of an intrascleral tunnel. 1.0 mm of haptic may be the optimal melt length.

Indexed as

Lenses, IntraocularBiomechanical PhenomenaHumansLens Implantation, IntraocularProsthesis DesignPseudophakiaScleraSuture TechniquesTissue DonorsVisual Acuity

Identifiers

PMID33626366
PMCPMC10479968

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.