CompletedNot Applicable

Quality of Vision in Implantable Collamer Lens (ICL)

China70 participantsStarted 2021-07-01

Plain-language summary

The aim of this study is to observe the influence of pupil size upon visual outcome in patients with Visian Implantable Collamer Lens(ICL) and toric-ICL implantation.

Who can participate

Age range18 Years – 99 Years

SexALL

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

Inclusion Criteria: * Myopic eyes * Preoperative corneal endothelial cell count ≥2200/mm2 * Preoperative central anterior chamber depth\> 2.80mm * Intraocular pressure within the normal range (10-21mmHg) Exclusion Criteria: * Severe dry eye * Cataract and glaucoma * Patients with uveitis * Retinal detachment * Patients with autoimmune diseases * Patients with systemic diseases such as diabetes and hypertension * Patients with mental or cognitive abnormalities

What they're measuring

Subjective Quality of vision

Timeframe: Baseline (before surgery) and 3 month after surgery

Pupil diameter pre-operation and post-operation

Timeframe: Baseline (before surgery) and 3 month after surgery

Wave front aberrometry

Timeframe: baseline and 3 month after surgery

Point Spread Function (PSF)

Timeframe: baseline and 3 month after surgery

Strehl ratio

Timeframe: Baseline and 3 month after surgery

Modulation transfer function (MTF)

Timeframe: Baseline and 3 month after surgery

Trial details

NCT IDNCT04982107

SponsorHe Eye Hospital

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2021-08-30

View on ClinicalTrials.gov More Pupil Diameter trials