rayner多焦點ppt課件-文庫吧在線文庫
【正文】 n Prohibited. Telephone: + 44 1273 205401 Rayner 多焦的光學(xué)設(shè)計 ? 折射性設(shè)計，屈光度在前表面 ? 五個同心光學(xué)區(qū)帶，每個區(qū)帶單獨非 球面處理 ? 中心區(qū)帶直徑為 ? 漸進性多焦點設(shè)計 ? 附加屈光度 +3D和 +4D w w w . r a y n e r . c o m Copyright of Rayner Intraocular Lenses Ltd – Reproduction Prohibited. Telephone: + 44 1273 205401 前后表面對比 w w w . r a y n e r . c o m Copyright of Rayner Intraocular Lenses Ltd – Reproduction Prohibited. Telephone: + 44 1273 205401 Mflex （ 630F）非球面多焦點人工晶體 w w w . r a y n e r . c o m Copyright of Rayner Intraocular Lenses Ltd – Reproduction Prohibited. Telephone: + 44 1273 205401 Mflex （ 630F）非球面多焦點人工晶體 人工晶體的計算 可以采用傳統(tǒng)單焦點人工晶體的計算方法 也可以登陸 Rayner 公司專用的網(wǎng)站計算 password: sdemo101 login name: sdemo101 w w w . r a y n e r . c o m ?The aim of our study was to pare functional results of cataract surgery in patients implanted with MFLEX (Rayner, UK) multifocal IOL’s with different additions for near vision ?PURPOSE Efficacy, safety, predictability and stability of the refractive results, intraoperative and postoperative plications and patients satisfaction with VF14 test were evaluated w w w . r a y n e r . c o m ?METHODS Addition power for near Range (Dsph) Patients Eyes Age (mean) Followup time Group 1 + D 16 32 3969 () 12 months Group 2 + D 16 32 4171 () 12 months ? Motivated to reduce their dependency on glasses ? The followup time was 12 months. w w w . r a y n e r . c o m Parameter Results group I +3D group II +4D Sphere (D) Mean 177。 衍射的缺陷 Diffraction Limit w w w . r a y n e r . c o m ? 利用光波動力衍射原理在光學(xué)面上構(gòu)筑衍射階梯和衍射區(qū)帶將光線分別送至遠、近兩個焦點。w w w . r a y n e r . c o m Copyright of Rayner Intraocular Lenses Ltd – Reproduction Prohibited. Telephone: + 44 1273 205401 Rayner 多焦點人工晶體介紹 w w w . r a y n e r . c o m 獲得看遠，看近的能力，模擬人自然地全程視力。 ? 優(yōu)勢： ? 對瞳孔的依賴性較小 ? 不足： ? 對居中性要求較高 ? 不能 100%利用光能，只有 8082%的有效能量， 1820%的能量損耗，對比敏感度下降較大。 SD 177。 Range to to Axial length (mm) Mean 177。 Range to to Intraocular pressure (mmHg) 177。 Range to to ?PREOPERATIVE DATA w w w . r a y n e r . c o m ?RESULTS U D V A0 , 0 00 , 2 00 , 4 00 , 6 00 , 8 01 , 0 01 , 2 0b e f o r e 1 d a y a f t e r 1 w e e ka f t e r1 m o n t ha f t e r3 m o n t h sa f t e r6 m o n t h sa f t e r1 2 m o n t h sa f t e rg r o u p Ig r o u p I I00 , 20 , 40 , 60 , 811 , 2b e f o r e 1 d a y a f t e r 1 w e e k a f t e r1 m o n t h a f t e r
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1