Skip to content

Studying the effect of correcting refractive errors with glasses on sleep quality

Studying the effect of correcting refractive errors with glasses on sleep quality in employees aged 30 to 40 years visiting an eye clin

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20260208068791N1
Enrollment
33
Registered
2026-02-17
Start date
2026-04-04
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Condition 1: Refractive errors. Condition 2: sleep quality. Disorders of refraction and accommodation Sleep disorders

Interventions

The intervention consists of optical correction of participants’ refractive errors using appropriate spectacle lenses. Following a complete optometric examination, a standard and up-to-date prescripti

Sponsors

Iran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
30 Years to 40 Years

Inclusion criteria

Inclusion criteria: Age between 30 and 40 years Presence of corrected refractive error with asthenopia in the mild to moderate range (myopia up to -6 diopters, hyperopia up to +4 diopters, astigmatism up to 2 diopters), so that the patient needs optical correction, but not complete correction. Not wearing glasses in the past 6 months or current prescription is inappropriate Written consent to participate in the study Having eyes (asthenopia) Not having presbyopic qualities and having perfect nearsightedness

Exclusion criteria

Exclusion criteria: Any active anterior and posterior segment disease of the eye History of eye surgery (including refractive surgery, cataract surgery, corneal transplantation, ring, cross-linking, etc.) History of eye trauma Accommodation and vergence disorders, strabismus, amblyopia or history of related treatments in the past Systemic diseases affecting eye refractive errors (such as systemic autoimmune diseases, thyroid diseases, diabetes, etc.) Psychiatric disorders or use of psychotropic drugs Use of drugs that affect sleep or vision such as benzodiazepines, hypnotics, ophthalmic drugs with CNS effects in order to reduce confounding factors in examining the effect of uncorrected refractive errors on sleep quality. Wearing any type of contact lenses in the last month Regular coffee and caffeinated beverages People with stressful, shift or hourly jobs Working in bright and noisy environments

Design outcomes

Primary

MeasureTime frame
Sleep quality. Timepoint: The primary outcome measures include baseline (before optical correction) and 4 weeks after optical correction and continued use of glasses. At these two time points, sleep quality is measured and compared. Method of measurement: Sleep quality is measured using the Pittsburgh Sleep Quality Questionnaire.

Secondary

MeasureTime frame
High-order optical aberration. Timepoint: The primary outcome measures include baseline (before optical correction) and 4 weeks after optical correction and continued use of glasses. At these two time points, higher-order optical aberrations are measured and compared. Method of measurement: Higher-order optical aberrations are measured using a pentacam device based on Zernike coefficients and the root mean square value of the aberrations is recorded.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAshkan Amirabadi

Iran University of Medical Sciences

opt.ashkan@gmail.com+98 21 2222 8051

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Jun 11, 2026