Tissue Adhesions Clinical Trial
Official title:
Phase 1 Evaluate Capsular Apposition to Intraocular Lens in Subjects With High Myopia by Ultra-long Scan Depth Optical Coherence Tomography; Phase 2 Evaluate Capsular Apposition to Different Types of Intraocular Lens in Subjects
In this study, the investigators examined the capsule-IOL interaction including anterior and posterior capsule adhesion, contact between posterior capsule and the posterior edge of intraocular lense (IOL), configuration of capsular bend and the incidence of posterior capsular opacity (PCO) between high myopia eyes and emmetropia eyes.
150 eyes of 150 cataract patients scheduled for phacoemulsification surgery were recruited,
of which 20 eyes were high myopia (AL > 26mm) and 40 eyes were emmetropia (22 < AL < 25mm)
as control group.High myopia eyes and 20 emmetropia eyes were implanted with the
single-piece hydrophobic acrylic IOL (Acrysof IQ SN60WF, Alcon laboratories, Inc. IQ group).
Another 20 emmetropia eyes were implanted with the other single-piece hydrophilic acrylic
IOL (Akreos Adapt, Bausch &Lomb, AO group).80 eyes implanted with the single-piece
hydrophobic acrylic IOL were examined by SSOCT to build the 3-D model of anterior segment.
Methods: 60 eyes were examined by custom-built UL-OCT at 4 hours, 1 day, 7 day, 14 day, 28
day, 3 month, 6 month,12 month after surgery.30 eyes implanted with the single-piece
hydrophobic acrylic IOL were recruited for evaluation of the SSOCT reliability.50 eyes were
examined by SSOCT at 1 day, 7 day,1 month, 3 months,6 months,12 months after surgery.
Measures: Contact of the anterior and posterior lens capsule with the IOL optic surface was
evaluated. Types of capsular bend were described at the last follow-up. The incidence of
posterior capsular opacity (PCO) was evaluated.
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Observational Model: Case Control, Time Perspective: Prospective
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