Effects of machine-based vs surgeon-based marking in astigmatism-correcting lens implantation during cataract surgery

Accuracy of Toric Intraocular Lens implantation using Automated Vs Manual Marking

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN12294725

Enrollment

130

Registered

2018-07-20

Start date

2014-02-01

Completion date

Unknown

Last updated

2019-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataracts with corneal astigmatism Eye Diseases Cataracts with corneal astigmatism

Interventions

Participants will be randomised to either SMI group or manual group in a 1:1 allocation using individual-level blocked randomisation stratified by sex (male, female) and age. The randomisation sequenc

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Cataracts 2. Corneal astigmatism > 1.5 diopters 3. Aged over 20

Exclusion criteria

Exclusion criteria: 1. Glaucoma 2. Retinal disease 3. Irregular astigmatism

Design outcomes

Primary

Measure	Time frame
Toric intraocular axis, measured using a refractometer 1 day, 1 month and 2 months post-operation	—

Secondary

Measure	Time frame
The following are measured by a physician using the logMAR method 1 day, 1 month and 2 months post-operation: 1. Uncorrected visual acuity 2. Best corrected visual acuity	—

Countries

Korea, South

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 2, 2026