---
title: Patient Satisfaction With Contoura Vision Topography-Guided LASIK
nct_id: NCT04903301
overall_status: COMPLETED
phase: NA
sponsor: Rush Eye Associates
study_type: INTERVENTIONAL
primary_condition: Myopia
countries: United States
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT04903301.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT04903301"
ct_last_update_post_date: 2023-11-18
last_seen_at: "2026-05-12T06:29:17.485Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Patient Satisfaction With Contoura Vision Topography-Guided LASIK

**NCT ID:** [NCT04903301](https://clinicaltrials.gov/study/NCT04903301)

## Key Facts

- **Status:** COMPLETED
- **Phase:** NA
- **Study Type:** INTERVENTIONAL
- **Target Enrollment:** 50
- **Lead Sponsor:** Rush Eye Associates
- **Conditions:** Myopia, Astigmatism
- **Start Date:** 2021-05-21
- **Completion Date:** 2023-11-01
- **CT.gov Last Update:** 2023-11-18

## Brief Summary

To evaluate patient reported outcomes associated with quality of vision before and after treatment with Contoura Vision Topography-Guided LASIK.

## Eligibility

- **Minimum age:** 21 Years
- **Maximum age:** 35 Years
- **Sex:** ALL
- **Healthy Volunteers:** Yes

```
Eligibility criteria: The study enrollment will include all willing patients with: pre-operative BCVA 20/20 for each eye individually, myopic refractive error up to -8.00 diopters, refractive astigmatism that ranges from 0 to 3 diopters, maximum spherical equivalent of -9.00 diopters, the designated age requirements, and only patients that have signed the informed consent document.

Exclusion criteria: Patients are excluded that are not willing to participate in a research trial, are unable to cooperate well enough to safely perform the procedure, fail to meet inclusion criteria, have ocular disease (including but not limited to keratoconus, macular degeneration, glaucoma, corneal dystrophy, dry eye syndrome and corneal scarring), and patients that have had previous ocular surgery. Any patients with known allergies to the post-operative medications or preservatives in the medications will also be excluded.
```

## Arms

- **Study Group** (EXPERIMENTAL) — Contoura Vision LASIK using Phorcides Analytic Software

## Interventions

- **Contoura Vision LASIK** (PROCEDURE) — Topography-Guided LASIK using Phorcides Analytic Software

## Primary Outcomes

- **Global Vision Satisfaction Index** _(time frame: 26 weeks)_ — Analog Score from Adapted from PROWL Survey

## Secondary Outcomes

- **Vision** _(time frame: 26 weeks)_
- **Objective Scatter Index** _(time frame: 26 weeks)_
- **Higher Order Corneal Aberrations** _(time frame: 26 weeks)_

## Locations (1)

- Rush Eye Associates, Amarillo, Texas, United States

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.phases` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.rush eye associates|amarillo|texas|united states` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT04903301.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT04903301*  
*This page is a raw mirror with no AI summary, no editorial enrichment, and no Parkinson's-specific filtering.*