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How Astigmatism Influences Co...

How Astigmatism Influences Corneal Biomechanics and Intraocular Pressure

Last Updated: 2017-05-22

Study Results

Results pending

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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Recruitment Status

COMPLETED

Total Enrollment

39 participants

Study Classification

OBSERVATIONAL

Study Start Date

2005-05-01

Study Completion Date

2016-12-01

Brief Summary

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The aim of the study was to identify whether preoperative corneal astigmatism can influence corneal biomechanics and the assessment of intraocular pressure (IOP) following micro-incision phacoemulsification.

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Detailed Description

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Conditions

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Corneal Astigmatism Intraocular Pressure Cataract Senile

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Interventions

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non-contact measurement of intraocular pressure

Non-contact measurement of corneal biomechanical properties and intraocular pressure with an Ocular Response Analyzer. Parameters measured: corneal hysteresis (CH), corneal resistance factor (CRF), Goldman-correlated IOP (IOPg), corneal compensated IOP (IOPcc) and waveform score (WS).

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* diagnosis and qualification for cataract surgery, corneal astigmatism of equal to or less than 2.25 Dcyl

Exclusion Criteria

* corneal astigmatism higher than 2.25 Dcyl, history of any other corneal disease (infection, trauma, ulceration, autoimmune inflammation, Fuchs Dystrophy, keratoconus, corneal scars, preoperative insufficiency of corneal endothelium), glaucoma and chronic use of non-glaucoma eye drops, blepharitis, dry eye, use of contact lenses diabetes or a history of corneal refractive surgery

Minimum Eligible Age

52 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers