CompletedNot Applicable

Effect of Presbyopic Correction Lens on Humphrey Visual Field Testing in Patients With Multifocal Intraocular Lens

Thailand71 participantsStarted 2009-06-01

Plain-language summary

Purpose of this study was to evaluate the effect of presbyopic correction lens on Humphrey visual field (HVF) testing in patients with 2 models of multifocal intraocular lens (MIOL) both with and without glaucoma. All participants performed HVF testing with presbyopic collection lenses and without presbyopic collection lenses on the same occasion (5-10 minutes between the test). The mean deviation (MD) and pattern standard deviation (PSD) were compared between with and without presbyopic collection lenses, between glaucoma and non-glaucoma and between 2 models of MIOL.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Glaucomatous and non-glaucomatous patients * Age older than 18 years * A history of uneventful phacoemulsification with MIOL implantation at least one month before participation * Distant best-corrected visual acuity (BCVA) equal to or better than 20/30 * Near BCVA of at least Jaeger 2 Exclusion Criteria: * The inability to perform reliable visual field testing (fixation loss, false positive or false negative more than 25%) * A history of postoperative complications * Moderate to advanced visual field defects (MD less than - 6 dB) * Any other concurrent ocular diseases, except well-controlled glaucoma.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Mean deviation

Timeframe: at 1 day after enrollment

Pattern standard deviation

Timeframe: at 1 day after enrollment

Trial details

NCT IDNCT05220007

SponsorSiriraj Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2012-07-31

View on ClinicalTrials.gov More Glaucoma trials