CompletedNot Applicable

Dysphotopsia Following Laser Peripheral Iridotomy

Canada214 participantsStarted 2008-01

Plain-language summary

To establish the correlation of the location of the Nd:YAG laser peripheral iridotomy to the post operative visual symptoms experienced by some patients. The investigators hypothesize that fully uncovered laser peripheral iridotomy will produce less significant dysphotopsia, due to avoidance of the prismatic effect produced by the tear film than those covered.

Who can participate

Age range18 Years

SexALL

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: * Able and willing to make the required study visit * Able and willing to give consent and follow study instructions * An indication to undergo laser peripheral iridotomy (narrow angles, occludeable angle at risk of acute angle closure, pupil block condition, chronic angle closure, pigment dispersion syndrome) Exclusion Criteria: * Previous intraocular surgery * Best corrected visual acuity worse than 20/40 * Asymmetrical ptosis of more than 2mm * Any active intraocular inflammation * Acute attack of angle closure glaucoma

What they're measuring

Presence of Linear Dysphotopsia

Timeframe: Baseline (Time =0),1 month

Trial details

NCT IDNCT01758237

SponsorCredit Valley EyeCare

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2009-01

View on ClinicalTrials.gov More Narrow Angle Patients at Risk for Angle Closure Glaucoma trials