# The Effect of Myopic Optical Defocus on the Humphrey Matrix 30-2 Test

> **NCT00638430** · — · COMPLETED · sponsor: **Samsung Medical Center** · enrollment: 40 (actual)

## Conditions studied

- Myopia

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00638430
- **Lead sponsor:** Samsung Medical Center
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2007-03
- **Primary completion:** 2007-10
- **Final completion:** 2008-03
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2008-03-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00638430

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00638430, "The Effect of Myopic Optical Defocus on the Humphrey Matrix 30-2 Test". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT00638430. Licensed CC0.

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