Evidence map›Paper›PMID 29463862›Full record

ArticleEye (London, England)2018

Intraoperative head drift and eye movement: two under addressed challenges during cataract surgery.

Kerr Brogan, Basu Dawar, David Lockington, Kanna Ramaesh

Abstract read
In one paragraph

Article in Eye (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Hybrid Parallel-Serial Tool Exchange Robot for Ophthalmic Precision Surgery: Mechanical Design.The international journal of medical robotics + computer assisted surgery : MRCAS · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Auditory Feedback Effectiveness for Enabling Safe Sclera Force in Robot-Assisted Vitreoretinal Surgery: a Multi-User Study.Proceedings of the ... IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE/RSJ International Conference on Intelligent Robots and Systems · 2020
    Article
  9. Towards securing the sclera against patient involuntary head movement in robotic retinal surgery.RO-MAN ... : the ... IEEE International Symposium on Robot and Human Interactive Communication : proceedings. IEEE International Symposium on Robot and Human Interactive Communication · 2019
    Article
  10. Article
  11. Article
  12. Autonomous Needle Navigation in Retinal Microsurgery: Evaluation inIEEE International Conference on Robotics and Automation : ICRA : [proceedings]. IEEE International Conference on Robotics and Automation
    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.

Kerr BroganTennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, Scotland. kerrbrogan@hotmail.co.uk.
Basu DawarTennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, Scotland.
David LockingtonTennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, Scotland.
Kanna RamaeshTennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, Scotland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo objectively measure head drift during cataract surgery, and subjectively simulate eye movements and assess impact on surgical technique. MATERIALS AND

methodsTwelve consecutively recorded routine cataract operations in the Tennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, were reviewed. The speculum was used as a fixed point and correlated with a superimposed virtual ruler to measure maximum head drift in each direction throughout the operations. To simulate intraoperative eye movement, we attached string to the cataract surgical simulator (Eyesi) eye and manually induced abduction and adduction. A calibrated scale secured to the Eyesi head ensured 5 mm eye movements were consistently created. Ophthalmology trainees performed the continuous curvilinear capsulorhexis (CCC) exercise without and with sequential eye movements. Movements were induced every three seconds. Scores were compared using a paired Student's T-test.

resultsMean head drift in the surgical recordings was 3.1 mm medially (range 2-7 mm), 2.9 mm laterally (range 2-4 mm), 2.6 mm superiorly (range 1-5 mm), and 1.9 mm inferiorly (range 1-4 mm). In 11 of 12 cases, the operating microscope had to be adjusted for head drift. Six junior trainees completed the CCC module on the Eyesi without then with eye movements. After introducing eye movements the mean Eyesi score reduced from 92.7 to 76.9 (P = 0.014), 'roundness of rhexis' score reduced from 89.4 to 57.5 (P = 0.020), and trainees operated 17 s faster (P = 0.016).

conclusionThis study objectively demonstrates the under-reported clinical scenario of head drift during cataract surgery. By manipulating the Eyesi we have shown that eye movements reduce the quality of cataract surgery.

Indexed as

Eye MovementsHead MovementsCapsulorhexisCataract ExtractionClinical CompetenceEducation, Medical, GraduateHumansIntraoperative PeriodOphthalmology

Identifiers

PMID29463862
PMCPMC5997653

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.