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.
Study Type
OBSERVATIONAL
Enrollment
70
He Eye Specialist Hospital, Shenyang.
Shenyang, Liaoning, China
Subjective Quality of vision
Change in QoV questionnaire score after ICL surgery at 3-month testing will be compare with baseline measurements
Time frame: 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
Time frame: 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
Time frame: 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
Time frame: 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
Time frame: 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
Time frame: Baseline and 3 month after surgery
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