CA2107828A1 - Multifocal contact lens with a difference power on the back surface - Google Patents
Multifocal contact lens with a difference power on the back surfaceInfo
- Publication number
- CA2107828A1 CA2107828A1 CA 2107828 CA2107828A CA2107828A1 CA 2107828 A1 CA2107828 A1 CA 2107828A1 CA 2107828 CA2107828 CA 2107828 CA 2107828 A CA2107828 A CA 2107828A CA 2107828 A1 CA2107828 A1 CA 2107828A1
- Authority
- CA
- Canada
- Prior art keywords
- lens
- optical
- optical power
- back surface
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 119
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 15
- 210000001525 retina Anatomy 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 11
- 210000001747 pupil Anatomy 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 8
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 6
- 210000004087 cornea Anatomy 0.000 description 4
- 210000000744 eyelid Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 208000001491 myopia Diseases 0.000 description 3
- 201000010041 presbyopia Diseases 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241001237728 Precis Species 0.000 description 1
- 101150007148 THI5 gene Proteins 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 235000009991 pite Nutrition 0.000 description 1
- 244000293655 pite Species 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- NLAIHECABDOZBR-UHFFFAOYSA-M sodium 2,2-bis(2-methylprop-2-enoyloxymethyl)butyl 2-methylprop-2-enoate 2-hydroxyethyl 2-methylprop-2-enoate 2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O.CC(=C)C(=O)OCCO.CCC(COC(=O)C(C)=C)(COC(=O)C(C)=C)COC(=O)C(C)=C NLAIHECABDOZBR-UHFFFAOYSA-M 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US95792292A | 1992-10-07 | 1992-10-07 | |
| US957,922 | 1992-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2107828A1 true CA2107828A1 (en) | 1994-04-08 |
Family
ID=25500354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2107828 Abandoned CA2107828A1 (en) | 1992-10-07 | 1993-10-06 | Multifocal contact lens with a difference power on the back surface |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPH06214198A (it) |
| AU (1) | AU4886693A (it) |
| BR (1) | BR9304171A (it) |
| CA (1) | CA2107828A1 (it) |
| CZ (1) | CZ208693A3 (it) |
| FI (1) | FI934388A (it) |
| IL (1) | IL107205A0 (it) |
| NO (1) | NO933571D0 (it) |
| TW (1) | TW268102B (it) |
-
1993
- 1993-10-06 IL IL107205A patent/IL107205A0/xx unknown
- 1993-10-06 NO NO933571A patent/NO933571D0/no unknown
- 1993-10-06 FI FI934388A patent/FI934388A/fi not_active Application Discontinuation
- 1993-10-06 CA CA 2107828 patent/CA2107828A1/en not_active Abandoned
- 1993-10-06 CZ CZ932086A patent/CZ208693A3/cs unknown
- 1993-10-06 AU AU48866/93A patent/AU4886693A/en not_active Abandoned
- 1993-10-07 BR BR9304171A patent/BR9304171A/pt unknown
- 1993-10-07 JP JP27480593A patent/JPH06214198A/ja active Pending
- 1993-11-15 TW TW82109510A patent/TW268102B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| AU4886693A (en) | 1994-04-21 |
| JPH06214198A (ja) | 1994-08-05 |
| NO933571D0 (no) | 1993-10-06 |
| CZ208693A3 (en) | 1994-08-17 |
| IL107205A0 (en) | 1994-01-25 |
| FI934388A0 (fi) | 1993-10-06 |
| TW268102B (it) | 1996-01-11 |
| BR9304171A (pt) | 1994-04-12 |
| FI934388A (fi) | 1995-04-07 |
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| KR20000010765A (ko) | 굴절률 구배 렌즈 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |