Long-term Observation of Ophthalmic Changes in Patients With Obstructive Sleep Apnea

Sponsor
Wroclaw Medical University (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT03928665
Collaborator
Wrocław University of Science and Technology (Other)
150
1
180
0.8

Study Details

Study Description

Brief Summary

The ophthalmic changes during long-lasting sleep apnea are lacking in description and assessment. The investigators intend to observe patients for a long time and observe if the changes in eye tissues are progressing over the years in easily recognizable patterns.

Condition or Disease Intervention/Treatment Phase

    Study Design

    Study Type:
    Observational [Patient Registry]
    Anticipated Enrollment :
    150 participants
    Observational Model:
    Case-Control
    Time Perspective:
    Prospective
    Official Title:
    Long-term Observation of Ophthalmic Changes in Patients With Obstructive Sleep Apnea
    Actual Study Start Date :
    Oct 1, 2012
    Anticipated Primary Completion Date :
    Oct 1, 2022
    Anticipated Study Completion Date :
    Oct 1, 2027

    Arms and Interventions

    Arm Intervention/Treatment
    Control group

    Sleep apnea using CEPAP

    Sleep apnea not using CEPAP

    Glaucoma control group

    Outcome Measures

    Primary Outcome Measures

    1. Perimetry changes over the years [10 years]

      Changes in retinal sensitivity (measured in decibels/ dB) during observation time measured by standard automated perimetry. The manner of presentation of overall descriptors auch as: mean deviation (MD; dB) and pattern standard deviation (PSD; dB) will be recorded.

    2. Flicker defined form perimetry changes over the years [10 years]

      Changes in retinal sensitivity (measured in decibels/ dB) during observation time measured by standard automated perimetry with flicker defined form signal. The manner of presentation of overall descriptors auch as: mean deviation (MD; dB) and pattern standard deviation (PSD; dB) will be recorded.

    3. RareBit perimetry changes over the years [10 years]

      Changes in Changes in retinal sensitivity (measured in percentage of all presented excitors/ %) during observation time measured by RareBit signal perimetry. The manner of presentation of overall descriptors auch as: mean hit rate (MHR; %), area under 90% (%) and sectorial mean miss rate (MMR; %) will be recorded.

    Secondary Outcome Measures

    1. Functional Outcomes of Sleep Questionnaire [10 years]

      Quality assessed with the Functional Outcomes of Sleep Questionnaire (FOSQ) comparing the score at baseline with during 10 years of observation. The questionnaire are composed of 30 questions that can be answered from 1 to 4 points (where 1 means extreme difficulty of doing an activity and 4 - no difficulties). Five subscales are given such as: General Productivity (8 questions -1 - 4, 8 - 11), Social Outcome (2 questions - 12, 13), Activity Level (9 questions - 5, 14 - 16, 22 - 26), Vigilance (7 questions - 6, 7, 17 - 21), Intimate Relationships and Sexual Activity (4 questions - 27 - 30). To obtain a Total Score: Calculate the mean of the subscale scores and multiply that mean by the number of subscales for which there is a score. The potential range of scores for the Total Score is 5 - 20.

    2. Epworth Sleepiness Scale [10 years]

      Quality assessed with the Epworth Sleepiness Scale comparing the score at baseline with during 10 years of observation. The questionnaire are composed of 8 questions describing activities during which patient can feel sleepy, each scored from 0 (zero probability to falling asleep) to 3 (very likely that patient will fall asleep).

    3. Pittsburgh Sleep Quality Index [10 years]

      Quality assessed with the Pittsburgh Sleep Quality Index comparing the score at baseline with during 10 years of observation. The questionnaire are composed of 10 questions composed in seven component scores are derived, each scored 0 (no difficulty) to 3 (severe difficulty). The component scores are summed to produce a global score (range 0 to 21). Higher scores indicate worse sleep quality.

    4. Change in thickness of the retinal nerve fibre layer (RNFL) [10 years]

      A difference in thickness of the retinal nerve fibre layer during the observation time frame.

    5. Change in the optic nerve morphology - standard chart of HRT [10 years]

      A difference in morphology parameters given by HRT (additional information given in supplementary materials) during the observation time frame.

    6. AREDS 2008 Clinical Lens Opacity Grading Procedure [10 years]

      Using AREDS system for classifying cataracts from photographs: AREDS Report No. 4 the lens opacity will be graded. The change in grading during the observation time frame.

    7. Macular changes in optical coherent tomography (OCT) [10 years]

      Evaluation of macular appearance based on the OCT scans. Any changes from normal appearance will be recorded and evaluated.

    8. Disc damage likelihood scale (DDLS) [10 years]

      Evaluation disc damage likelihood scale based on the fundus photographs (based on the visual scale given in additional documents)

    Other Outcome Measures

    1. Influence of fogging lens on retinal sensitivity to given trigger (Goldman III) on standard automated and RareBit perimetry [1 day]

      A fogging lens will be applied (a modified by the author protocol of fogging - increasing of +0.5D lens to obtain the reduction in logMAR visual acuity by 0.2 from best-corrected visual acuity/ BCVA)

    2. Influence of tiredness on retinal sensitivity to given trigger (Goldman III) on standard automated and RareBit perimetry [1 day]

      Influence of different examinations that precedes visual field examination on the perimetry test results (MD and PSD, or MHR, MMR and area under 90%).

    3. Peripapillar and macular vessels density [5 years]

      Measured on the custom-derived protocol and manufacturer software macular and peripapillar vessels density - Angio OCT (OCTA)

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Inclusion Criteria:
    • newly diagnosed obstructive sleep apnea indicated for positive airway pressure therapy,

    • ongoing treatment of sleep apnea with positive airway pressure therapy,

    • patients older than 18 years,

    • signed inform consent

    Exclusion Criteria:
    • pregnant and breastfeeding persons

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Department of Ophthalmology Wrocław Poland 50-556

    Sponsors and Collaborators

    • Wroclaw Medical University
    • Wrocław University of Science and Technology

    Investigators

    • Study Chair: Marta Misiuk-Hojło, Professor, Wrocław Medical University

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    Responsible Party:
    Joanna Przeździecka-Dołyk, Investigator, Wroclaw Medical University
    ClinicalTrials.gov Identifier:
    NCT03928665
    Other Study ID Numbers:
    • ST.2012.001
    First Posted:
    Apr 26, 2019
    Last Update Posted:
    Mar 29, 2022
    Last Verified:
    Mar 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Mar 29, 2022