招商银行上海分行不对称高添加镜头改善近视眼 眼科资讯|老年性黄斑变性的多焦点光学-卫计委防盲治盲培训基地

发布时间: 2年前 (2019-07-12)浏览: 207
不对称高添加镜头改善近视眼 眼科资讯|老年性黄斑变性的多焦点光学-卫计委防盲治盲培训基地

文本链接:http://www.eurotimes.org/multifocal-optics-amd/
根据Gerd U Auffarth的说法,老年性黄斑变性(AMD)的患者中,具有高度旋转不对称的近距离多焦点光学,可以作为植入式低视力的辅助工具。
德国海德堡大学的Auffarth博士报告说,在患有白内障和中央视力丧失的患者中,双焦点镜片在30厘米的阅读距离上多功能校准仪,利用Mplus微型眼镜片(IOL)和+8.0 D的近距离增加了大约1。5倍的放大率, IOL附加了一侧大约一半的光学黎沸挥 ,在另一侧提供距离校正。
“在观察的AMD案例中,我们可以获得优秀的视觉康复。即使是轻微的视力增加也会提高生活质量再次飞升,”Auffarth博士说。这项研究涉及了12名患者的14只眼睛,其中11人是女性,占92%。Auffarth博士说,平均年龄为81岁,5名患者有干性AMD和6名湿性AMD阿瓦罗萨 。干性老年性黄斑变性,中心视觉损伤和地理萎缩是典型的。
平均单眼术前距离未矫正视力为logMAR 1.00修正后 0.32,或20/200,或0.78,或20/120。植入的IOLs的平均距离功率为19.14。Auffarth博士说,结果因病人情况而异。在一个76岁的女性患者与治疗湿性AMD五年25 intravitreal注射之初,贝伐单和aflibercept,招商银行上海分行 植入一个MF80与cortico-nuclear better-seeing左眼白内障,近中心黄斑疤痕和黄斑水肿改善视力从0.6 logMAR,约20/80,距离修正手术前0.20 logMAR,约20/32,距离修正,和0.18 logMAR,约20/30,未修正的附近,和0.1,约20/25,距离修正近15厘米的距离。
相比之下,一名81岁的女性患者,她的左眼有湿润的AMD和黄斑水肿,她的左眼视力改善了0.82,或20/130的视力矫正视力到0。56 logMAR恐怖之家2 ,或20/70,在15厘米处未矫正视力。
Auffarth博士说长毛腊肠犬 ,尽管如此秋葵汤 ,她还是能够用2.5倍的放大率阅读报纸上的文字,并报告说没有视觉辅助的情况下写作。
患者预测未调整的距离的20/100到20/63视力可能会达到优秀的附近未修正的愿景,这些预期达到20/500到20/125距离附近可能会看到好的愿景,而预期的距离不到20/400的视力可能会看到没有受益于MF80的晶体,Auffarth博士说。
MULTIFOCAL OPTICS FOR AGE-RELATED MACULAR DEGENERATION
Asymmetric high-add lens improves near vision
Multifocal optics with a high rotationally asymmetric near add can be used as implantable low-vision aids in patients with age-related macular degeneration (AMD), according to Gerd U Auffarth.
In patients with cataract and central vision loss from AMD, the bifocal Oculentis Lentis Mplus MF80 intraocular lens (IOL) with a +8.0D near add achieved a magnification equivalent to about 1.5 times for a 30cm reading distance, reported Dr Auffarth神话放送 , of the University of Heidelberg, Germany. The IOL’s near add zone covers about half the optic on one side laterally黄莺花 , providing distance correction on the other side.
“In selected AMD cases we can achieve excellent visual rehabilitation. Even a slight vision increase result in improvement of quality of life,” Dr Auffarth said.
WET OR DRY The study involved 14 eyes in 12 patients帕丽扎提 , of whom 11, or 92%, were female. Mean age was 81 years, and five patients had dry AMD and six wet AMD, Dr Auffarth said. Central vision lesions and geographic atrophy were typical. Mean monocular pre-op distance uncorrected visual acuity was logMAR 1.00 ±0.32, or about 20/200金丝蓉 , and 0.78, or about 20/120, corrected. Mean distance power of the implanted IOLs was 19.1 ±4.0D.
Outcomes varied by patient condition, Dr Auffarth said. In one 76-year-old female patient with wet AMD treated for five years with 25 intravitreal injections of ranibizumab, bevacizumab and aflibercept常林钻石 , implanting an MF80 in her better-seeing left eye with a cortico-nuclear cataract,郑恩柏 paracentral macular scar and macular oedema improved vision from about 0.6 logMAR, or about 20/80刘宜良, distance corrected before surgery to 0.20 logMAR念斌案 , or about 20/32, distance corrected, and 0.18 logMAR, or about 20/30, uncorrected near高夫怎么样 , and 0.1, or about 20/25, distance corrected near at 15cm distance.
In contrast撒世贵 , an 81-year-old female patient with wet AMD and macular oedema implanted with an MF80 in her better-seeing left eye saw vision improve from 0.82 logMAR, or about 20/130 distance corrected vision to 0.56 logMAR, or about 20/70, uncorrected near vision at 15cm. Nonetheless, she was able to read newspaper print with 2.5x magnification and reported cooking without visual aids and writing with large letters without visual aids, Dr Auffarth said.
Patients with a predicted uncorrected distance visual acuity of 20/100 to 20/63 will likely achieve excellent uncorrected near vision, those expected to achieve 20/500 to 20/125 distance will likely see good near vision枇杷膏的制作 , while those expected distance vision of less than 20/400 will likely see no benefit from the MF80 IOL, Dr Auffarth said.

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