NL-OMON28006尚未招募不适用
Global Multicenter Study with the Hydrophobic Acrylic (HF) Iris-Fixated PIOL for the Correction of Myopia in Phakic Eyes
适应症
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- OPHTEC BV
- 入组人数
- 125
研究概览
简要总结
暂无简介。
研究设计
- 研究类型
- Interventional
入排标准
入选标准
- •Age >18 years; Axial myopia that can be fully corrected with a PIOL within the power range of -2.0 to -14.5 D (i.e.: myopia ranging from approximately -1.5 to -15.5 D, depending on keratometry values); Anticipated subjective astigmatism not exceeding 1.5 D in both eyes; Stable refraction (¡À0.5 D; ¡À1.0 D for refractive errors>10.0 D), as expressed by manifest refraction spherical equivalent (MRSE) for ¡Ý12 months prior to surgery, verified by consecutive refractions and/or medical records or prescription history; CDVA ¡Ý0.5 in each eye; UDVA ¡Ü 0.5 in each eye; Difference between cycloplegic and manifest refractions < 0.75 D; Current contact lens wearer has a stable refraction (¡À 0.5 D) on 2 consecutive examination dates at least 7 days apart, and the lenses were not worn for at least 2 weeks for rigid and toric contact lenses, or 3 days for spherical soft contact lenses prior to the first refraction;Minimum ACD of 3.2 mm (from epithelium to anterior lens capsule) by biometry, resulting in a critical distance between PIOL and endothelium of 1.5 mm or more as simulated with anterior segment imaging; Age specific, minimum endothelial cell density as follows (according to ISO11979-10):
- •18 to 25 years of age 2800 cells/mm2;
- •26 to 30 years of age 2650 cells/mm2;
- •31 to 35 years of age 2400 cells/mm2;
- •36 to 45 years of age 2200 cells/mm2;
- •> 45 years of age 2000 cells/mm2
- •Any subject who is expected to have residual postoperative cylindrical refractive error of up to 1.5 D has been given the opportunity to experience his/her best spectacle vision with anticipated spherical correction only, and is willing to proceed with the surgery; Availability, willingness and sufficient cognitive awareness and physical ability to comply with examination procedures throughout the entire duration of the study. No secondary surgical procedure planned during the course of the study (e.g. laser treatment to correct astigmatism).
排除标准
- •Ocular condition that can predispose for future complications or interfere with the ability to evaluate the safety or effectiveness of the lens; Acute or chronic disease or illness that would increase the operative risk or confound the outcome(s) of the study; Use of systemic or ocular medications that can confound the outcome of the study or increase the risk to the subject; Concurrent participation or participation during the last 30 days in any other clinical trial; Prior intraocular or corneal surgery; Patient, when examined preoperatively, not expected to achieve a postoperative CDVA of 0.5 or better; Insufficient space for the intended implant (ACD measured from epithelium <3.2 mm); Abnormal iris (e.g. bulging or volcano shaped iris, aniridia); Lens rise ¡Ý600 ¦Ìm; Abnormal cornea (e.g., keratoconus, opaque cornea, recurrent erosion syndrome, scars, or other cornea pathologies); Abnormal pupil (e.g. nonreactive, fixed, photopic diameter <2.0 mm); Ectopic pupil (>2 mm displacement from geometric center of cornea); Pupil >7 mm under scotopic conditions; Ocular hypertension (>21 mm Hg) Less than the minimal endothelial cell density as listed under inclusion criteria; Coefficient of variation of endothelial cell area ¡Ý0.45 (in both eyes); Endothelial disease that may potentially affect the visual outcome; History of retinal detachment; Evidence of retinal vascular disease or history of hypercoagulability; Glaucomatous changes in the retina or visual field; Glaucoma or glaucoma suspect; Any form of cataract; Corticosteroid responder; Active intraocular inflammation or recurrent ocular inflammatory condition; Monocular vision; Amblyopia;Microphthalmos or macrophthalmos; Immuno-compromised by steroids and/or antimetabolites; Pregnant, lactating, or plans to become pregnant during the course of the study Condition associated with fluctuation of hormones that could lead to refractive changes; Diabetes mellitus; Mentally retarded; Aged under 18; Surgical difficulty at the time of surgery which might increase the potential for complications; Not able to meet the extensive postoperative evaluation requirements.
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