logging in or signing up Cornea and Cornea Topography eyeguru Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 4621 Category: Education License: All Rights Reserved Like it (1) Dislike it (3) Added: November 23, 2008 This Presentation is Public Favorites: 1 Presentation Description Lecture on how to read Orbscan IIz Comments Posting comment... By: sagarshobha (31 month(s) ago) HI THERE.... I WOULD LIKE TO DOWNLOAD THE PRESENTATION Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Cornea and Cornea Topography : Cornea and Cornea Topography 5 Layers of Cornea : 5 Layers of Cornea Epithelium Bowman’s Membrane Stroma Descemet’s Membrane Endothelium Epithelium : Epithelium Provides Protection Provides a smooth surface so that nutrients and oxygen can transfer to the cornea. A lot of nerve endings Bowman’s Membrane : Bowman’s Membrane Composed of strong collagen tissue Helps to maintain the cornea’s shape Helps anchors down the epithelium Stroma : Stroma Contains mostly of water and protein The alignment of collagen fibers help the cornea retain its clarity. Descemet’s Membrane : Descemet’s Membrane Filters out infections and disease Helps with the stroma in maintaining the rigid shape of the cornea Endothelium : Endothelium Helps pumps fluid out of the Stroma Corneal Topography : Corneal Topography 3D view of Cornea Aids in diagnosis various cornea conditions and disease Used in Laser Refractive Surgeries K Readings : K Readings Measures is Diopters K< 41D is consider flat K>46D is consider Steep K>41 but <46 is consider average Important in determining LASIK K readings are also used in IOL master to calculate IOL’s Anterior Map : Anterior Map Posterior Map : Posterior Map Keratometric Map : Keratometric Map Regular Astigmatism : Regular Astigmatism Irregular Astigmatism : Irregular Astigmatism Pachemetry Map : Pachemetry Map Normal Topography : Normal Topography Abnormal Topography : Abnormal Topography Abnormal Topography : Abnormal Topography Keratoconus : Keratoconus Abnormal Cornea condition where the cornea protrudes out more; Instead of a Dome like Figure, it becomes like a cone Distorts and reduces vision Usually bilaterally but asymmetrical Usually Myopic with large amounts of Irregular astigmatism No corneal refractive surgeries can be done As the cornea steepens, the cornea pachemtry gets thinner Keratoconus cont… : Keratoconus cont… 3D Anterior Map of KC : 3D Anterior Map of KC 3D Posterior Map of KC : 3D Posterior Map of KC How to take Topographies : How to take Topographies Have the patient sit at a comfortable level Inform the patient on what test you are doing Try to have a good tear film Let the patient know they cannot move doing this test Demonstration of Topography : Demonstration of Topography How to take Pachs with Ultrasound : How to take Pachs with Ultrasound Always have pt look at a fixation point Carefully touch the central cornea with tip Try not to indent the cornea Always get a consistent reading Demonstration of US Pachs : Demonstration of US Pachs Keep in your head : Keep in your head Consistency is the answer Knowing what is normal and abnormal Good tear film Being comfortable with the machine will make the patient more comfortable with you When in doubt always ask You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Cornea and Cornea Topography eyeguru Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 4621 Category: Education License: All Rights Reserved Like it (1) Dislike it (3) Added: November 23, 2008 This Presentation is Public Favorites: 1 Presentation Description Lecture on how to read Orbscan IIz Comments Posting comment... By: sagarshobha (31 month(s) ago) HI THERE.... I WOULD LIKE TO DOWNLOAD THE PRESENTATION Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Cornea and Cornea Topography : Cornea and Cornea Topography 5 Layers of Cornea : 5 Layers of Cornea Epithelium Bowman’s Membrane Stroma Descemet’s Membrane Endothelium Epithelium : Epithelium Provides Protection Provides a smooth surface so that nutrients and oxygen can transfer to the cornea. A lot of nerve endings Bowman’s Membrane : Bowman’s Membrane Composed of strong collagen tissue Helps to maintain the cornea’s shape Helps anchors down the epithelium Stroma : Stroma Contains mostly of water and protein The alignment of collagen fibers help the cornea retain its clarity. Descemet’s Membrane : Descemet’s Membrane Filters out infections and disease Helps with the stroma in maintaining the rigid shape of the cornea Endothelium : Endothelium Helps pumps fluid out of the Stroma Corneal Topography : Corneal Topography 3D view of Cornea Aids in diagnosis various cornea conditions and disease Used in Laser Refractive Surgeries K Readings : K Readings Measures is Diopters K< 41D is consider flat K>46D is consider Steep K>41 but <46 is consider average Important in determining LASIK K readings are also used in IOL master to calculate IOL’s Anterior Map : Anterior Map Posterior Map : Posterior Map Keratometric Map : Keratometric Map Regular Astigmatism : Regular Astigmatism Irregular Astigmatism : Irregular Astigmatism Pachemetry Map : Pachemetry Map Normal Topography : Normal Topography Abnormal Topography : Abnormal Topography Abnormal Topography : Abnormal Topography Keratoconus : Keratoconus Abnormal Cornea condition where the cornea protrudes out more; Instead of a Dome like Figure, it becomes like a cone Distorts and reduces vision Usually bilaterally but asymmetrical Usually Myopic with large amounts of Irregular astigmatism No corneal refractive surgeries can be done As the cornea steepens, the cornea pachemtry gets thinner Keratoconus cont… : Keratoconus cont… 3D Anterior Map of KC : 3D Anterior Map of KC 3D Posterior Map of KC : 3D Posterior Map of KC How to take Topographies : How to take Topographies Have the patient sit at a comfortable level Inform the patient on what test you are doing Try to have a good tear film Let the patient know they cannot move doing this test Demonstration of Topography : Demonstration of Topography How to take Pachs with Ultrasound : How to take Pachs with Ultrasound Always have pt look at a fixation point Carefully touch the central cornea with tip Try not to indent the cornea Always get a consistent reading Demonstration of US Pachs : Demonstration of US Pachs Keep in your head : Keep in your head Consistency is the answer Knowing what is normal and abnormal Good tear film Being comfortable with the machine will make the patient more comfortable with you When in doubt always ask