Onderzoek beleving staaroperatie

Validation of the Surgical Fear Questionnaire (SFQ) has recently been established. However, all studies used for validation applied the SFQ only at one single time point, and information on convergent validity of the SFQ, as a subjective instrument, with a biological index of fear is lacking.

The aim of this observational study is to establish the course of surgical fear, assessed by the SFQ at multiple time points and to establish the convergent validity of the SFQ with salivary cortisol and alpha amylase levels. Furthermore the patient preferences for preoperative treatment of surgical fear are assessed, and SFQ scores of the first and second cataract surgery are compared.

Primary outcome measure:
SFQ scores measured at one week before first surgery, the day before first surgery, the day of first surgery and the day before second surgery.

Secondary outcomes:
Salivary cortisol and alpha amylase levels, the NRS fear score, retrospective evaluation of SFQ score, preferences for surgical fear treatment, surgical recovery , and postsurgical pain.

Population:
Adult cataract surgery patients (N=102).

Primary Objective:
Establishing the course of surgical fear, assessed by the surgical fear questionnaire at multiple time points, from one week before surgery until the day of surgery.

Secondary Objectives:
• Establishing the convergent validity of the SFQ with two biological indexes of stress/anxiety, salivary cortisol and salivary alpha amylase.
• Assessing patient preferences for preoperative treatment of surgical fear
• Comparing SFQ scores of the first versus the second cataract surgery.

1. one week before first surgery
2. the day before first surgery
3. the day of first surgery
4. the day before second surgery
5. four weeks after (second) surgery

Not applicable