Influence of Keratoconus on Stress at Work

Study Overview
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Brief Summary
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Keratoconus is a progressive disorder in which central and paracentral corneal stromal thinning occurs. No studies evaluated the influence of keratoconus on stress at work, nor the influence of treatments of keratoconus on stress at work, including Quality of Life at work and on perception of work. Moreover, it has been shown that some pathologies had greater influence in some occupations, also depending on other characteristics of individuals such as age, sex or socio professional groups. Therefore, we hypothesized that keratoconus 1) will influence stress at work including QoL at work and perception of work, 2) will have a greater influence in some occupations and depending on age, sex, or stage of keratoconus, 3) will induce stoppage of work and occupational reclassifications.

Detailed Description
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This is a descriptive, prospective, observational, monocentral study. For each patient with keratoconus and patient control, use of the auto questionnaire to carry out the study. we only assessed data from usual routine practice. Stress at work is measured by Job Content Questionnaire of Karasek issued during consultations. Study all workers the influence of keratoconus and its stage on: consequences of keratoconus in function of visual acuity, mode of correction and staging of the keratoconus. Psychological consequences: Quality of life at work, Perception of work (Karasek questionnaire), anxiety and depression (HAD scale) Professional consequences: stoppage of work and duration and occupational reclassifications Characteristics of the patient: age, sex, occupation. Measures to reduce or avoid bias: Standardized, anonymous auto questionnaire A large workforce: high rate of participation is expected Inclusion of control group.

Official Title
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Influence of Keratoconus on Stress at Work

Conditions
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Good Visual Acuity for Control, Keratoconus in One or Two Eyes for Case

Intervention / Treatment
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* Behavioral: auto-questionnaire


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: patients with keratoconus all stages followed at the CHU Gabriel Montpied, patients constituting a representative control group of workers consulting in ophthalmology service of Clermont-Ferrand. Exclusion Criteria: an other ophtalmological disease alters visual acuity. minors subjects inability to provide informed consent

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| KERATOCONUS group<br>All workers with keratoconus all stages followed at the service of ophthalmology in CHU Gabriel Montpied, Clermont-Ferrand, Auvergne. The investigators only assessed data from usual routine practice. Patients answer the auto questionnaire in last minutes of consultation. | Behavioral: auto-questionnaire<br>* Patients answer the auto questionnaire in last minutes of consultation.<br>|
| CONTROL group<br>workers with good visual acuity consulting in ophthalmology service of Clermont-Ferrand. The investigators only assessed data from usual routine practice. Patients answer the auto questionnaire in last minutes of consultation. | Behavioral: auto-questionnaire<br>* Patients answer the auto questionnaire in last minutes of consultation.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| stress at work | measured by Job Content questionnaire of Karasek | day 0 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| psychological consequences | measured by HAD scale | Day 0 | 
| Stoppage of work | professional consequences of stoppage of work : reclassifications | Day 0 | 
| Duration of stoppage of work | professional consequences of duration of stoppage of work : reclassifications | Day 0 | 
| characteristics of the patient | sex, age, occupation | day 0 | 
| Measure of visual acuity. | Consequence of keratoconous on visual acuity | Day 0 | 
| Mode of correction. | visual consequences of keratoconus on mode of correction | Day 0 | 
| staging of keratoconous | visual consequences of keratoconus on keratoconous stage | Day 0 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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keratoconus, Karasek, stress at work