Comparison of manual and automatic laser ablation in feto-LASIK

Effect of eye-tracker system in FS-LASIK on optical zone centration: a contralateral randomized clinical trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20100706004333N4

Enrollment

Registered

2021-11-22

Start date

2021-11-22

Completion date

Unknown

Last updated

2021-11-29

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

Conditions

Myopia. Myopia, bilateral

Interventions

Intervention 1: In femtosecond assisted laser in situ keratomileusis (FS-LASIK), after topical anesthesia, the flap (110.0 µm thick) is created by Femto LDV (Ziemer Ophthalmic Systems AG, Port, Switze

Eligibility

Sex/Gender

All

Age

20 Years to 45 Years

Inclusion criteria

Inclusion criteria: myopia= 3.0D stable refraction in the past year (change ± 0.50 D or less) residual stromal bed thickness (RSB) of at least 300.0 µm

Exclusion criteria

Exclusion criteria: Corneal ectasia

Design outcomes

Primary

Measure	Time frame
Decentration of ablation zone from corneal vertex. Timepoint: 3 months after surgery. Method of measurement: Pachymetric map by Pentacam.	—

Secondary

Measure	Time frame
Visual acuity. Timepoint: 3 months after surgery. Method of measurement: Snellen chart.;Refraction. Timepoint: 3 months after surgery. Method of measurement: Retinoscope.;Corneal aberrations. Timepoint: 3 months after surgery. Method of measurement: Pentacam.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSoheila Asgari

Noor Eye Hospital

soheilaasgari@gmail.com+98 21 8240 1624

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026