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Completed

NCT Number: NCT04975126

Computer-based Tutorial as Supportive Means to Enhance the Informed Consent Process for Cataract Surgery

To assess whether a computer-based tutorial as supportive means enhances quality and efficiency of the informed consent process for cataract surgery focussing on the patients' attitude before and after surgery.

Completed

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Key information

Conditions

Cataract Eye Diseases Lens Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Vienna Institute for Research in Ocular Surgery (VIROS)

Vienna, 1140, Austria

About this study

Informing the patient and obtaining informed consent is one of the major duties physicians perform before starting a medical treatment. The requirements concerning the informed consent process are high. The amount of information needed to be explained to the patient is growing, as procedures get more complex and the number of treatment options increase.

The CatInfo tool is a computer-based tutorial about cataract and cataract surgery run on a handheld device with headphones and presented in an audio-visual fashion. The patient gives feedback after each chapter using a traffic light system to ensure that the content has been understood (green - content understood, ready to continue; yellow - questions that require discussion with the physician and red - repetition of the module required). A printout that summarizes what the patient has selected after each chapter immediately tells the physician which topics have been poorly understood or were unclear.

It has been shown in a randomized triple-masked study that patients using the CatInfo tool were significantly better informed than patients only having a face-to-face interview. Satisfaction with the tool was high. This present study has the goal to assess the patients' attitude before and after surgery using validated questionnaires (decisional conflict scale, decision regret scale) as well as knowledge. Patients scheduled for their first eye cataract surgery are randomly allocated to two groups, receiving standard face-to-face informed consent (control group) or additionally using the interactive CatInfo tool (study group). Scores between the groups are compared.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Cataract
  • Age 18 and older
  • First eye to be operated
  • No previous ophthalmic surgery
  • written informed consent to participation in the study

Exclusion criteria

  • Visual acuity of less than 0.1 Snellen in the worse eye
  • Severe hearing loss
  • Inability to use touch screen device (e.g. severe tremor, etc.)

Treatment and study plan

CatInfo tool

Other

Presentation about cataract surgery

Primary outcomes

  1. Decisional conflict scale score

    Time frame: Day of pre-assessment visit (1 week before surgery)

    To assess the decisional confidence after the face-to-face informed consent discussion patients are asked to complete the decisional conflict scale questionnaire. In this study it is calculated as decisional confidence, where 0 represents the lowest decisional confidence and 100 the highest.

  2. Decision regret scale score

    Time frame: 1 month after surgery

    One month after surgery the patients' satisfaction with their decision is evaluated with the decision regret scale (DRS) questionnaire via telephone interview. A score of 0 means no regret, a score of 100 high regret.

  3. Number of correctly answered questions assessing knowledge

    Time frame: Day of pre-assessment visit (1 week before surgery)

    To assess the knowledge concerning cataract surgery patients are asked to complete a multiple-choice questionnaire concerning cataract surgery. The number of correctly answered questions are summed up. The scale ranges from a minimum of 0 points to a maximum of 19 points. The more points the better the patient's knowledge about cataract and cataract surgery.

Sponsors and collaborators

Lead sponsor

Vienna Institute for Research in Ocular Surgery

Other

Registry information

Official study title

Computer-based Tutorial as Supportive Means to Enhance Quality and Efficiency of the Informed Consent Process for Cataract Surgery: an Exploratory Study

Important dates

Study start
2015
Primary completion
2017
Study completion
2017
First posted
Jul 23, 2021
Registry last updated
Jul 23, 2021

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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