Menicon Z Night Toric Ortho-K Lens
Specifications
Details
Menicon Z Night Toric Ortho-K Lenses Menicon Z Night Toric 角膜塑形镜(OK镜)
The Menicon Z Night Toric is a specialized orthokeratology (Ortho-K) contact lens designed to gently reshape the front surface of the eye (the cornea) while a person sleeps, enabling clear, lens-free visual perception throughout the day. Unlike standard spherical Ortho-K lenses that treat uniform nearsightedness, the Toric variant features a customized dual-meridian, peri-toric geometry specifically engineered for eyes with astigmatism (an oval or football-shaped corneal surface). By incorporating different steepness curves across the horizontal and vertical axes, the lens aligns securely over astigmatic corneas, allowing the tear reservoir beneath the lens to exert balanced hydrodynamic pressure that smooths out central corneal curvature overnight.
Menicon Z Night Toric 是一款专用的角膜塑形镜(Ortho-K,俗称 OK镜),旨在利用使用者夜间睡眠的时间,温和地重塑眼球前表面(角膜)的形状,从而让使用者在白天无需佩戴任何眼镜或隐形眼镜即可拥有清晰视力。与用于矫正均匀近视的标准球形 OK 镜不同,Toric(散光)版本采用了定制的双轴双弧(peri-toric)几何结构,专门针对伴有散光(角膜表面呈椭圆形或橄榄球状)的眼球设计。通过在水平和垂直轴向设置不同的弧度变化,该镜片能够紧密且稳定地贴合在散光角膜上,使镜片下方的泪液层施加均衡的水动力压力,在睡眠过程中平滑中央角膜曲率。
Detailed Specifications and Key Features 详细规格与核心特色
Manufactured from Menicon Z—a hyper-oxygen permeable rigid gas-permeable (RGP) material with an exceptionally high oxygen transmissibility rating (Dk 163)—this lens ensures that the cornea receives vital oxygen during extended sleep, minimizing the risk of corneal hypoxia and maintaining long-term eye health. The physical lens features three specialized fenestration micro-holes engineered into its reverse geometry zone, which promotes continuous tear exchange beneath the lens, preventing suction lock and ensuring quick removal each morning. Additionally, the lens employs distinct color-coding for handling safety (the right lens is tinted red/pink, and the left lens is tinted blue) to prevent mix-ups. Designed for annual replacement, Menicon Z Night Toric can correct myopia up to -4.00 D to -5.00 D along with with-the-rule astigmatism up to -2.75 D to -4.00 D, making it an effective option for children whose astigmatism previously excluded them from standard Ortho-K treatment.
该镜片采用 Menicon Z 材质制造——这是一种具有极高透氧率(Dk 163)的超高透氧硬性透气性(RGP)材料,能确保角膜在漫长睡眠中获得充足的氧气,最大程度降低角膜缺氧风险,守护长期眼健康。镜片物理结构在其反几何区设计了三个专用的微型排气孔(fenestration micro-holes),可促进镜片下方的泪液持续循环交换,防止产生负压吸附(suction lock),确保次日晨起时轻松取下镜片。此外,镜片采用清晰的颜色区分(右眼为红/粉红色,左眼为蓝色),方便日常取戴并防止混淆。 Menicon Z Night Toric 建议每年更换,可矫正高达 -4.00 D 至 -5.00 D 的近视,以及高达 -2.75 D 至 -4.00 D 的顺规散光,为以前因散光较高而无法佩戴标准 OK 镜的儿童提供了高效的解决方案。
Questions and Answers for Parents 疑问与解答
Q1: Is wearing a rigid lens overnight safe for my child's eyes? 问:孩子整夜佩戴硬性镜片对眼睛安全吗?
Yes, overnight wear is safe when fitted properly and maintained with strict hygiene practices. Menicon Z Night Toric lenses are crafted from hyper-permeable material (Dk 163), allowing significant oxygen to reach the cornea while your child sleeps. While any contact lens carries a small risk of surface irritation or corneal infection (microbial keratitis), following proper cleaning protocols using prescribed solutions—such as daily multipurpose cleaners and monthly protein removers—minimizes these risks significantly.
是的,在经过专业验配并严格遵守卫生护理的前提下,夜间佩戴是安全的。Menicon Z Night Toric 镜片采用超高透氧材质(Dk 163)制成,能在孩子睡眠时为角膜输送充足氧气。虽然任何隐形眼镜都存在极小的表面刺激或角膜感染(微生物角膜炎)风险,但只要按照医嘱使用专用的护理液(如日常多功能护理液和每月去蛋白护理液)进行规范清洁,就可以大幅降低此类风险。
Q2: Will these lenses hurt or feel uncomfortable when my child puts them in at night? 问:晚上戴上镜片时,孩子会感到疼痛或不舒服吗?v
Children typically experience a mild awareness of the lens during the first few days of wear, which feels similar to an eyelash sitting on the eye when blinking. However, because Ortho-K lenses are worn with the eyes closed during sleep, the sensation drops dramatically once the eyelids shut. Most children adapt quickly within 1 to 2 weeks, experiencing comfortable sleep without disruption.
孩子在初戴的前几天通常会有一点异物感,类似于眨眼时睫毛落入眼中的感觉。不过,由于 OK 镜是在睡觉闭眼时佩戴,只要闭上眼睛,异物感就会显著减轻。大多数儿童能在 1 到 2 周内快速适应,并在夜间获得舒适无干扰的睡眠。
Q3: How long does it take for my child to achieve clear vision during the day? 问:孩子需要多久才能在白天获得清晰视力?
Visual improvement begins after the very first night of wear, though optimal and stable vision throughout the entire day usually develops within 1 to 3 weeks of consistent nightly wear. During the initial transition phase, your child's eyesight may gradually drift or soften toward the late evening, which is normal as the corneal reshaping effect stabilizes.
通常在佩戴第一晚后就能感受到视力的提升,但要获得全天稳定且最佳的清晰视力,通常需要连续佩戴 1 到 3 周。在初期的过渡阶段,孩子的视力到了傍晚可能会稍有回退或变软,随着角膜塑形效果的巩固,这种现象会逐渐消失。
Q4: Can Ortho-K lenses slow down my child's worsening shortsightedness (myopia)? 问:角膜塑形镜真的能减缓孩子近视加深的速度吗?
Yes, orthokeratology is widely recognized by eye care professionals as one of the most effective non-surgical interventions for myopia control in children. By altering how light focuses on the peripheral retina (creating peripheral myopic defocus), Ortho-K lenses help send a signal to the eye to slow down its physical lengthening, thereby reducing the rate at which your child's prescription increases over time.
是的,角膜塑形术被眼科专业人员广泛公认为控制儿童近视加深最有效的非手术干预手段之一。通过改变光线在周边视网膜上的聚焦方式(形成周边近视性离焦),OK 镜能向眼球发送信号,减缓眼轴的过度拉长,从而显著降低度数加深的速度。
Q5: What happens if my child misses a night of wearing their lenses? 问:如果孩子有一晚忘记戴镜片会怎样?
Ortho-K treatment is fully reversible. If your child forgets to wear their lenses for one night, their cornea will begin to return toward its natural shape, resulting in slightly blurred vision by the afternoon or evening of the following day. If lens wear is stopped completely, the eyes will revert to their original shape and prescription within a few weeks, allowing them to return to standard glasses without permanent structural changes.
角膜塑形治疗是完全可逆的。如果孩子有一晚忘记佩戴,角膜会开始缓慢恢复其原始形状,导致次日下午或傍晚视力略有模糊。如果完全停止佩戴,眼球会在几周内恢复到原来的形状和近视度数,可以随时重新戴回普通框架眼镜,不会造成任何永久性的结构改变。
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