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

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

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03928665
Enrollment
150
Registered
2019-04-26
Start date
2012-10-01
Completion date
2027-10-01
Last updated
2022-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma, Ocular Hypertension, Sleep Apnea

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.

Interventions

None listed

Sponsors

Wrocław University of Science and Technology
CollaboratorOTHER
Wroclaw Medical University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

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

Design outcomes

Primary

MeasureTime frameDescription
RareBit perimetry changes over the years10 yearsChanges 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.
Flicker defined form perimetry changes over the years10 yearsChanges 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.
Perimetry changes over the years10 yearsChanges 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.

Secondary

MeasureTime frameDescription
Pittsburgh Sleep Quality Index10 yearsQuality 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.
Change in thickness of the retinal nerve fibre layer (RNFL)10 yearsA difference in thickness of the retinal nerve fibre layer during the observation time frame.
AREDS 2008 Clinical Lens Opacity Grading Procedure10 yearsUsing 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.
Macular changes in optical coherent tomography (OCT)10 yearsEvaluation of macular appearance based on the OCT scans. Any changes from normal appearance will be recorded and evaluated.
Disc damage likelihood scale (DDLS)10 yearsEvaluation disc damage likelihood scale based on the fundus photographs (based on the visual scale given in additional documents)
Change in the optic nerve morphology - standard chart of HRT10 yearsA difference in morphology parameters given by HRT (additional information given in supplementary materials) during the observation time frame.
Functional Outcomes of Sleep Questionnaire10 yearsQuality 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.
Epworth Sleepiness Scale10 yearsQuality 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).

Other

MeasureTime frameDescription
Influence of fogging lens on retinal sensitivity to given trigger (Goldman III) on standard automated and RareBit perimetry1 dayA 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)
Peripapillar and macular vessels density5 yearsMeasured on the custom-derived protocol and manufacturer software macular and peripapillar vessels density - Angio OCT (OCTA)
Influence of tiredness on retinal sensitivity to given trigger (Goldman III) on standard automated and RareBit perimetry1 dayInfluence of different examinations that precedes visual field examination on the perimetry test results (MD and PSD, or MHR, MMR and area under 90%).

Countries

Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026