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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.
The aim of this study is to observe the influence of pupil size upon the quality of vision outcome in patients with Visian Implantable Collamer Lens(ICL) and toric-ICL implantation. Pre-operation and 3-month post-operation pupil size, visual acuity, quality of vision will be evaluated in patient that had ICL surgery.
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| Measure | Description | Time Frame |
|---|---|---|
| Subjective Quality of vision | Change in QoV questionnaire score after ICL surgery at 3-month testing will be compare with baseline measurements | Baseline (before surgery) and 3 month after surgery |
| Pupil diameter pre-operation and post-operation | Change in Pupil diameter after ICL surgery at 3-month testing will be compare with baseline measurements | Baseline (before surgery) and 3 month after surgery |
| Wave front aberrometry | Change in Wave front aberrometry after ICL surgery at 3-month testing will be compare with baseline measurements | baseline and 3 month after surgery |
| Point Spread Function (PSF) | Change in Point Spread Function (PSF) after ICL surgery at 3-month testing will be compare with baseline measurements | baseline and 3 month after surgery |
| Strehl ratio | Change in Pupil diameter after ICL surgery at 3-month testing will be compare with baseline measurements | Baseline and 3 month after surgery |
| Modulation transfer function (MTF) | Change in Modulation transfer function after ICL surgery at 3-month testing will be compare with baseline measurements | Baseline and 3 month after surgery |
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Inclusion Criteria:
Exclusion Criteria:
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Randomly choosen patients from the hospital records who had ICL surgery at He Eye Hospital, Shenyang, China during September 2019 to September 2020. They must have signed informed consent for their records to be used for education and research purposes before undergoing ICL surgery for myopic correction.
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| Name | Affiliation | Role |
|---|---|---|
| Wei He | He Eye Specialist Hospital, Shenyang. | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| He Eye Specialist Hospital, Shenyang. | Shenyang | Liaoning | 110141 | China |
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