WithdrawnNot Applicable

Comparison of Haptic Orientation in Negative Dysphotopsia

Stopped: A recent publication answered the study question being asked

0Started 2016-04

Plain-language summary

Previous studies attempted to understand the dysphotopsia phenomenon by examining intraocular lens type, anterior capsule depth, iris-to-lens depth, lens refractive material, clear cornea incision wounds and anterior capsulorrhexis. However, there is limited literature in understanding haptic orientation and negative dysphotopsia; postulated theories and anecdotal reports relate to horizontal haptic orientation and the lateralization of rays such that light is received both in smaller width and anterior to the peripheral retina; however, no formal studies currently exist.

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: Patients with bilateral cataracts that are visually significant meeting standard criteria for removal and select standard monofocal lens implantation. Exclusion Criteria: Patients with any prior refractive surgery including prior cataract surgery, corneal ocular pathology, iris atrophy/damage, retinal or optic nerve pathology. Patients with history of peripheral vision loss. Patients selecting multifocal or toric lens implantation.

What they're measuring

Presence of negative dysphotopsia after cataract surgery at 6 months

Timeframe: 6 months

Trial details

NCT IDNCT02724553

SponsorLoma Linda University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2016-11

View on ClinicalTrials.gov More Negative Dysphotopsia trials