Evaluation of Effectiveness of Correcting Refractive Error With Ready-made Spectacles
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Guofu Huang, MD
Zhongshan Ophthalmic Center, Sun Yat-sen University
Study Director - Lisa J Keay, PhD BOptom
Johns Hopkins University
Principal Investigator
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
2 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Zhongshan Ophthalmic Center, Sun Yat-Sen University
Guangzhou, China
- Shroffs Charity Eye Hospital
New Delhi, India
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 30 Apr 2008
- Primary completion
- 30 Nov 2008
- Completion
- 30 Sept 2009
- Last update posted
- 9 Oct 2009
- Registered enrollment
- 800
- Registry id
- NCT00657670
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.