JP7253303B2 - 眼球内レンズシステム - Google Patents
眼球内レンズシステム Download PDFInfo
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- JP7253303B2 JP7253303B2 JP2021023869A JP2021023869A JP7253303B2 JP 7253303 B2 JP7253303 B2 JP 7253303B2 JP 2021023869 A JP2021023869 A JP 2021023869A JP 2021023869 A JP2021023869 A JP 2021023869A JP 7253303 B2 JP7253303 B2 JP 7253303B2
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
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Description
r1=6.6mm、k1=-9、
r2=-5.7mm、k2=-0.6、
r3=-13.3mm、k3=-100、
r4=4mm、k4=-7。
項の重み付け係数である。
i)
cは、曲率半径Rの逆であり、R:c=1/R
ii)
kは、円錐定数であり(-1~0の範囲の値で、
iii)
aは、円錐定数への追加である非球面の多項式の係数である。
第1の面:-9
第2の面:-0.6
第3の面:-110
第4の面:-7
Claims (8)
- 加齢性黄斑変性症(AMD)を治療するための眼球内レンズシステムであって、
前記システムは、
眼球内に配置するための前部光収束眼球内レンズであって、第1の前面と、第1後面と、該前部光収束眼球内レンズが眼の光軸と並ぶように構成された複数の前方の触覚とを有する前部光収束眼球内レンズと、
前記前部光収束眼球内レンズの後方の眼球内に配置するための後部光発散眼球内レンズであって、第2の前面と、第2の後面と、該後部光発散眼球内レンズが眼の光軸と並ぶように構成された複数の後方の触覚とを有する後部光発散眼球内レンズと、を備え、
前記第1の前面又は前記第1の後面のいずれかの内の少なくとも1つと、前記第2の前面又は前記第2の後面のいずれかの内の少なくとも1つは、非球形にされ、
前記非球形にされた非球面のそれぞれは、網膜の黄斑部分と損傷した中心窩の外側の1つまたは複数の選好網膜領域(PRL)とを含む2つの網膜偏心間の領域で網膜に焦点を合わせる網膜像の連続体を提供するように構成された、半径と円錐値を有する回転対称多項式円錐表面であり、
前記後部光発散眼球内レンズは、前記前部光収束眼球内レンズとは別個かつ分離されており、
前記複数の前方の触覚は、毛様体溝に係合する表面を含み、前記前部光収束眼球内レンズは、前記眼の毛様体溝に配置されるような寸法として構成され、
前記複数の後方の触覚は、水晶体嚢係合面を含み、前記後部光発散眼球内レンズは、眼の水晶体嚢内に配置されるような寸法として構成されることを特徴とする眼球内レンズシステム。 - 前記非球面のうちの第1の非球面は、焦点深度を増大させるように前記非球面のうちの第2の非球面よりも高い非球面度を有する、請求項1に記載の眼球内レンズシステム。
- 前記非球面の少なくとも1つは、収差を含む表面を有し、前記収差は、傾き、焦点ずれ、非点収差、または、コマ収差のいずれか1つについてゼルニケ多項式である、請求項1に記載の眼球内レンズシステム。
- 前記前部光収束眼球内レンズと前記複数の前方の触覚は、一体として形成される、請求項1に記載の眼球内レンズシステム。
- 前記前部光収束眼球内レンズと前記後部光発散眼球内レンズの1つ又は両方は、拡大された像が前記中心窩中央から5度以上広幅角度にて前記網膜上に結像されるように改変される、請求項1に記載の眼球内レンズシステム。
- 前記前部光収束眼球内レンズと前記後部光発散眼球内レンズは、生体適合材料から作製される、請求項1に記載の眼球内レンズシステム。
- 前記生体適合材料は、シリコーンまたはポリメタクリル酸メチルである、請求項7に記載の眼球内レンズシステム。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023045595A JP2023068118A (ja) | 2013-08-12 | 2023-03-22 | 眼球内レンズシステム |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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- 2014-08-12 EP EP14753119.8A patent/EP3033044B1/en active Active
- 2014-08-12 US US14/911,948 patent/US20160193040A1/en not_active Abandoned
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- 2014-08-12 US US14/911,937 patent/US20160193039A1/en not_active Abandoned
- 2014-08-12 CN CN201480053786.1A patent/CN105592821A/zh active Pending
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