# Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK)

> **NCT00778570** · — · UNKNOWN · sponsor: **Ottawa Hospital Research Institute** · enrollment: 4000 (estimated)

## Conditions studied

- Nearsightedness
- Farsightedness
- Astigmatism

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00778570
- **Lead sponsor:** Ottawa Hospital Research Institute
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2007-02
- **Primary completion:** 2020-12
- **Final completion:** 2020-12
- **Target enrollment:** 4000 (ESTIMATED)
- **Last updated:** 2014-12-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00778570

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00778570, "Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK)". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT00778570. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*