Prospective comparison of Laser Assisted In Situ Keratomileusis (LASIK) using one and two step ablation for the correction of refractive errors after penetrating keratoplasty

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN84941922

Enrollment

Registered

2004-09-30

Start date

2002-04-25

Completion date

Unknown

Last updated

2020-04-14

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

Conditions

Surgery: Keratomileusis Surgery Keratomileusis

Interventions

Comparison of 2 methods of LASIK surgery: 1. One step (flap cut and immediate laser ablation) 2. Sequential (flap cut and delayed laser ablation, 1 month later) LASIK

Eligibility

Inclusion criteria

Inclusion criteria: Not provided at time of registration

Exclusion criteria

Exclusion criteria: Not provided at time of registration

Design outcomes

Primary

Measure	Time frame
To compare the safety and predictability of one step (flap cut and immediate laser ablation) and sequential (flap cut and delayed laser ablation, 1 month later) LASIK treatment for post-PK-myopic spherical error	—

Secondary

Measure	Time frame
Not provided at time of registration	—

Countries

United Kingdom

Outcome results

None listed

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