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CompletedNCT01740466EPPUpdated Dec 7, 2012

Epidemiological Profile of Ophthalmological Care in the Public Service in Brazil

An observational study in Eye Abnormalities, sponsored by Instituto de Olhos de Goiania. Completed at 1 site in Brazil. Per ClinicalTrials.gov, last updated 2012-12-07.

Sponsored by Instituto de Olhos de Goiania · Observational

Study type
Observational
Model
Ecologic or community
Time perspective
Retrospective
Enrollment
1,670
Sex
All
01

Study summary

Epidemiological study about eye discomfort complaints, comorbidities and diagnosis at a Brazil's ophthalmological public care service

Read the detailed description
  1. 1670 individuals underwent an ophthalmologic evaluation
  2. The data were obtained through the analysis of the medical records with the ICD-10 registration
  3. The studied variables were age and sex of patient, origin, eye discomfort complaints, comorbidities and diagnosis (ICD-10).
  4. The purpose was to evaluate epidemiological aspects of eye diseases in a public service
02

Conditions studied

  • Eye Abnormalities

Keywords

  • Prevalence
  • Vision disorders
  • Eye diseases
  • Visual acuity
  • Primary health care
03

In context

Eye Abnormalities

28 studies on the registry are indexed under Eye Abnormalities; 3 are open to participants now.

This study's enrollment of 1,670 is above the median of 100 across 14 observational studies indexed under Eye Abnormalities.

Browse Eye Abnormalities studies →

Lead sponsor

Instituto de Olhos de Goiania is the lead sponsor of 27 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Individuals underwent an ophthalmologic evaluation

Inclusion criteria

  • Patients assisted in public service

Exclusion criteria

Exclusion Criteria:

05

Study design

Observational model
Ecologic or community
Time perspective
Retrospective
Enrollment
1,670 participants (actual)
Target follow-up
6 Months
Patient registry
Yes

Groups and cohorts

  • Ocular diseases

    Observational

06

What researchers measure

Primary outcomes

  1. Incidence and prevalence of visual conditions in the Public Service in Brazil

    * The ages ranged from 0 to 99 years * The mean age was 56.9 years * There was a predominance of females (58.1%) * The main reason for the consultation was low visual acuity (70%), followed by burning (26%) and itchiness (24.4%) * Among the abnormal tests there was a high prevalence of refractive errors (73.4%) and presbyopia (59.6%) * The cause of refractive errors was astigmatism (70.5%), hypertrophy (58.6%) and myopia (15.1%)

    Time frame: 6 months

07

Study locations

1 site
  • Instituto de Olhos de Goiania
    Goiania, Goias 74110120, Brazil
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Mar 2012, a primary completion of Jul 2012 and a completion of Aug 2012. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 30, 2012
First posted
Dec 4, 2012
Start
Mar 2012
Primary completionActual
Jul 2012
CompletionActual
Aug 2012
Last update
Dec 7, 2012
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 7, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01740466
Lead sponsor
Instituto de Olhos de Goiania
Responsible party
Sponsor
First posted
Dec 4, 2012
Start date
Mar 2012
Primary completion
Jul 2012
Completion
Aug 2012
Last update
Dec 7, 2012

Study contacts

Marisa N Figueiredo
study chair · IOG

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2012. You cannot join it, but the record below documents what was studied.

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