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OpenTrials
Completed

NCT Number: NCT03102073

Validation of Romanian Version of Radner Reading Charts

Interventional, parallel groups, single center trial with a prospective design

Completed

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Key information

Conditions

Visual Acuity

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Opera Contract Research Organization Srl

Timișoara, Timiș County, 300209, Romania

About this study

The "Radner Reading Charts" have been developed on the basis of the concept of "sentence optotypes" for the standardized examination of reading acuity and reading speed. Print sizes are logarithmically scaled (LogRAD) to permit statistical analysis, and the results obtained can be compared to other logarithmically scaled vision systems (e.g., LogMAR). To guarantee accurate, reproducible and standardized measurements of reading acuity and reading speed at every viewing distance, "sentence optotypes" have been created to minimize the variations between the test items and to keep the geometric proportions as constant as possible at all distances. Through interdisciplinary cooperation, a series of test sentences were developed that are highly comparable in terms of the number of words (14 words), as well as the word length, number of syllables, position of words, lexical difficulty and syntactical complexity. The most similar sentences were statistically selected for the Radner Reading Charts.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Men or women aged ≥18 years
  • Visual acuity ≥ 20/20 Snellen in each eye
  • Average daily reading time for students 5-7 hours and for non-students 0,5-2 hours
  • Willingness to provide signed informed consent

Exclusion criteria

  • Ocular pathologies that can influence the study results
  • Alcohol ingestion
  • Concomitant medication that can influence visual acuity

Treatment and study plan

Radner test

Diagnostic Test
  • The A5 reading booklet is held by the subject
  • The subject is instructed to read sentence by sentence, by turning consecutively the pages of the booklet (on the first side is the number of sentence and the backward side contains the sentence)
  • The subject is instructed to read the sentences aloud as quickly and accurately as possible to the end, and to not correct reading errors.
  • One assessor is writing the reading time and records any reading errors on the scoring sheet while the second assessor is audio recording the operation
  • Stop criterion: reading time longer than 20 seconds or severe errors.

Other names: Validation of the Romanian version-Radner Reading Charts

Primary outcomes

  1. Reading speed

    Time frame: 2-4 months postsurgery

    in words per minute

Secondary outcomes

  1. Reading errors

    Time frame: 2-4 months postsurgery

    count errors at each sentence

Sponsors and collaborators

Lead sponsor

Opera CRO, a TIGERMED Group Company

Other

Registry information

Important dates

Study start
2016
Primary completion
2017
Study completion
2017
First posted
Apr 5, 2017
Registry last updated
Jan 16, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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