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GR990100250A - Photoablatble lenticular modulator - Google Patents

Photoablatble lenticular modulator

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Publication number
GR990100250A
GR990100250A GR990100250A GR990100250A GR990100250A GR 990100250 A GR990100250 A GR 990100250A GR 990100250 A GR990100250 A GR 990100250A GR 990100250 A GR990100250 A GR 990100250A GR 990100250 A GR990100250 A GR 990100250A
Authority
GR
Greece
Prior art keywords
modulator
corneal surface
ablation
cornea
solution
Prior art date
Application number
GR990100250A
Other languages
Greek (el)
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Original Assignee
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by filed Critical
Publication of GR990100250A publication Critical patent/GR990100250A/en

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  • Laser Surgery Devices (AREA)

Abstract

Photoablatale modulator for use in Laser ablation processes on the cornea consisting of a mixture of collagen and vegetable gelatins which is formed in situ on the corneal surface to be treated. A small quantity of a solution at a temperature higher of that of the cornea is applied on the corneal surface and is shaped to form an optically centered lenticule by means of a special device. The solution solidifies at corneal temperatures and forms a rigid gel which adheres strongly on the corneal surface. A dye added in the solution enables the visual monitoring of the ablation process. The lenticular modulator produced with the disclosed method is customized to provide an ablation profile that smoothes the corneal surface and additionally removes the geometrical irregularities that may pre-exist on it. The final shape of the cornea corresponds to the shape of the mold used for the preparation of the modulator. The device used for the centering of the modulator on the ocular optical axis may include subsidiary elements that facilitate and verify the correct placement of the lenticule on the corneal surface. Gas flow nozzles for the removal of the ablation by-products may be also built-in the device.
GR990100250A 1999-07-21 1999-07-21 Photoablatble lenticular modulator GR990100250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR99100250 1999-07-21

Publications (1)

Publication Number Publication Date
GR990100250A true GR990100250A (en) 2001-03-30

Family

ID=10943883

Family Applications (1)

Application Number Title Priority Date Filing Date
GR990100250A GR990100250A (en) 1999-07-21 1999-07-21 Photoablatble lenticular modulator

Country Status (1)

Country Link
GR (1) GR990100250A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856513A (en) 1987-03-09 1989-08-15 Summit Technology, Inc. Laser reprofiling systems and methods
EP0470703A1 (en) * 1990-08-07 1992-02-12 MDV Technologies, Inc. Thermally reversible and irreversible gels
US5277911A (en) * 1990-08-07 1994-01-11 Mediventures, Inc. Ablatable mask of polyoxyalkylene polymer and ionic polysaccharide gel for laser reprofiling of the cornea
US5279611A (en) * 1992-03-13 1994-01-18 Mcdonnell Peter J Laser shaping of ocular surfaces using ablation mask formed in situ
US5492135A (en) 1992-09-09 1996-02-20 Devore; Dale P. Collagen modulators for use in photoablation excimer laser keratectomy
US5723142A (en) * 1994-10-11 1998-03-03 Bowyer; Barry L. Method for masking the cornea
US5807381A (en) * 1995-10-18 1998-09-15 Scientific Optics, Inc. Method and apparatus for improving vision

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856513A (en) 1987-03-09 1989-08-15 Summit Technology, Inc. Laser reprofiling systems and methods
EP0470703A1 (en) * 1990-08-07 1992-02-12 MDV Technologies, Inc. Thermally reversible and irreversible gels
US5277911A (en) * 1990-08-07 1994-01-11 Mediventures, Inc. Ablatable mask of polyoxyalkylene polymer and ionic polysaccharide gel for laser reprofiling of the cornea
US5279611A (en) * 1992-03-13 1994-01-18 Mcdonnell Peter J Laser shaping of ocular surfaces using ablation mask formed in situ
US5492135A (en) 1992-09-09 1996-02-20 Devore; Dale P. Collagen modulators for use in photoablation excimer laser keratectomy
US5723142A (en) * 1994-10-11 1998-03-03 Bowyer; Barry L. Method for masking the cornea
US5807381A (en) * 1995-10-18 1998-09-15 Scientific Optics, Inc. Method and apparatus for improving vision

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Legal Events

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