Clinical trial for Dry Eye
Official title Effect of Dry Eye Treatment on Corneal Astigmatism Measurements
ClinicalTrials.gov ID: NCT07657858
What this study is testing
What is Sodium Hyaluronate Eye Drops?
Sodium Hyaluronate Eye Drops is an investigational medicine, given as an once-daily, being studied as a potential treatment for dry eye.
Plain-language explanation of the investigational treatment - it is being studied and is not an approved or proven therapy. The study team can confirm the details.
- What it's testing
- This prospective single-center study evaluates the effect of dry eye disease and short-term ocular surface treatment on the agreement and repeatability of corneal astigmatism measurements in patients with age-related cataract. Participants undergoing preoperative cataract evaluation are classified into a control group or a dry eye disease group according to ocular surface symptoms and objective tear film findings.
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Adults
You may be able to join if
- Patients with age-related cataract undergoing preoperative ocular examination.
- Ability to complete ocular surface evaluation, including the Ocular Surface
- Disease Index questionnaire, non-invasive tear film break-up time, tear meniscus height, Schirmer test, and ocular surface staining.
- Ability to complete repeated corneal astigmatism measurements using IOLMaster 700, Pentacam AXL, and iTrace Prime.
- Ability to maintain stable fixation during device measurements. Provision of written informed consent.
You likely can't join if
- Previous ocular surgery or ocular trauma.
- Corneal degeneration, corneal dystrophy, or other corneal diseases that could affect corneal measurements.
- Active corneal or conjunctival infection.
- Uveitis.
- Use of any topical eye drops within 24 hours before examination.
- Use of antiglaucoma medications.
See the full eligibility criteria
- Patients with age-related cataract undergoing preoperative ocular examination.
- Ability to complete ocular surface evaluation, including the Ocular Surface
- Disease Index questionnaire, non-invasive tear film break-up time, tear meniscus height, Schirmer test, and ocular surface staining.
- Ability to complete repeated corneal astigmatism measurements using IOLMaster 700, Pentacam AXL, and iTrace Prime.
- Ability to maintain stable fixation during device measurements. Provision of written informed consent.
- Previous ocular surgery or ocular trauma.
- Corneal degeneration, corneal dystrophy, or other corneal diseases that could affect corneal measurements.
- Active corneal or conjunctival infection.
- Uveitis.
- Use of any topical eye drops within 24 hours before examination.
- Use of antiglaucoma medications.
- Contact lens wear within 1 month before examination.
- Previous or ongoing treatment for dry eye disease.
- Poor fixation during device measurements.
- Poor-quality measurements from any study device
The study team makes the final eligibility decision.
Where it's taking place
- Shanghai, Shanghai Municipality, China
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, not specified. The study team makes the final eligibility decision.
Where is this trial taking place?
Study sites include Shanghai, Shanghai Municipality, China. Enter your location above to see the nearest site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from ClinicalTrials.gov; the study team decides eligibility.