Comparison of a Smartphone Based Self Refraction Tool With Conventional Refraction Error Estimation Methods
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|ClinicalTrials.gov Identifier: NCT03419351|
Recruitment Status : Recruiting
First Posted : February 1, 2018
Last Update Posted : February 1, 2018
Self evaluating tools based on smartphone devices are public available on the market for each person. The tools are used to estimate the existing refractive error for each eye of a patient. Hereafter, e.g. ordering glasses via internet could be the next step for this persons.
The daily routine within an eye hospital shows, that estimation of the refractive error is a difficult and time consuming procedure.
The study compares the results of the measured refractive error using a smartphone based tool with the results of conventional measurement methods.
|Condition or disease||Intervention/treatment||Phase|
|Refractive Errors Self-Examination||Diagnostic Test: Smartphone Diagnostic Test: Autorefractor Diagnostic Test: Individual||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||50 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Comparison of a Smartphone Based Self Refraction Tool With Conventional Refraction Error Estimation Methods|
|Actual Study Start Date :||November 20, 2017|
|Estimated Primary Completion Date :||January 31, 2018|
|Estimated Study Completion Date :||March 31, 2018|
Main study group including all individuals that underwent the study procedures
Diagnostic Test: Smartphone
Smartphone based measurement of refractive error and visual acuity testing using these measurements.
Diagnostic Test: Autorefractor
Autorefractor based measurement of refractive error and visual acuity testing using these measurements.
Diagnostic Test: Individual
Individual, human measurement of refractive error and visual acuity testing using these measurements.
- Refractive Error [ Time Frame: 6 month ]Comparison of refractive error measurements between methods
- Visual acuity [ Time Frame: 6 month ]Visual acuity of persons using based on different methods.
- Personal evaluation of measuring accuracy (Questionnaire) [ Time Frame: 6 month ]Would persons be willing to order glasses by using only self-test-results?
- Time consumption [ Time Frame: 6 month ]Comparison of needed time to reach self-test refraction error results and conservative-test results.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03419351
|University Eye Hospital||Recruiting|
|Tuebingen, BW, Germany, 72076|
|Contact: Martin A Leitritz, M.D. +49 (0) 7071-29-88088 email@example.com|
|Principal Investigator: Martin A Leitritz, M.D.|
|Sub-Investigator: Sebastian Mueller, M.D.|
|Principal Investigator: Markus Schulze-Schwering, M.D.|