Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
21 participants
OBSERVATIONAL
2021-11-01
2022-09-30
Brief Summary
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Detailed Description
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The new method for tear film examination Strip meniscometry (SM) appears to be a suitable alternative to the Schirmer test. SM values correlate with Oxford score (fluorescein staining), tear break up time test or measurement of meniscus height using anterior segment optical coherence tomography. It is a minimally invasive and rapid examination method that measures the volume of the aqueous component of the tear film.
The aim of this study is to evaluate the possible influence of cataract surgery on the development of iatrogenic OSD and to assess the contribution of a new diagnostic method, SM, for the evaluation of OSD before and after cataract surgery.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Interventions
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Central visual acuity
Measurement of central visual acuity using Snellen optotype chart.
Intraocular pressure measurement
Measurement of intraocular pressure using non-contact Canon TX-20P tonometer.
Slit lamp examination
Slit lamp examination of the anterior and posterior segment of the eye after pharmacological dilation of the pupil using application of short-time mydriatics (1% tropicamide and 10% phenylephrine).
Refraction and keratometry
Measurement of refraction and keratometry using refractometer Nidek ARK-1a.
Optical biometry
Measurement of optical biometry using biometer Argos (Barrett or SRK/T formula).
Strip meniscometry (SM)
Strip meniscometry examination using strip meniscometry tube.
Lid Parallel Conjunctival Folds test (LIPCOF)
Evaluation of lid parallel conjunctival folds using slit lamp examination.
Staining of the ocular surface with fluorescein
Evaluation of ocular surface fluorescein staining using Oxford scheme.
Tear break up time test (TBUT)
Evaluation of tear break up time using slit lamp examination.
Ocular Surface Disease Index questionnaire (OSDI)
Evaluation of Ocular Surface Disease Index using Ocular Surface Disease Index questionnaire.
Eligibility Criteria
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Inclusion Criteria
* performing of pre-operative examination before cataract surgery
* signed informed consent
Exclusion Criteria
* chronic blepharitis
* previous viral keratitis
* previous keratoplasty or laser refractive surgery
* known systemic disease causing changes on ocular surface (diabetes mellitus, connective tissue disease)
* use of medication causing changes on ocular surface (antidepressant, beta blockers)
18 Years
ALL
No
Sponsors
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Palacky University
OTHER
University Hospital Olomouc
OTHER
Responsible Party
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Zuzana Schreiberova
Principal Investigator
Principal Investigators
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Marta Karhanova, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
University Hospital Olomouc and Palacky University Olomouc
Locations
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Department of Ophthalmology, University Hospital Olomouc
Olomouc, , Czechia
Countries
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Other Identifiers
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24/22
Identifier Type: -
Identifier Source: org_study_id
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