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| Name | Class |
|---|---|
| OptiMedica Corporation | INDUSTRY |
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The study compares anatomic outcomes of Intra Ocular Lens(IOL) placement with two methods of centration of the capsulorhexis- scanned capsule centration and pupil centration. It is hypothesized that scanned capsule centration provides more uniform(25% better) overlap of capsulorhexis margin over IOL optic compared to pupil centration.
50 consecutive eyes undergoing cataract surgery will be studied. 25 eyes will have scanned capsule centration and 25 will have pupil centration. Retroillumination slitlamp photographs will be taken 10-30 days after surgery with dilated pupils. The amount of capsule overlapping the IOL will be documented. The horizontal, vertical and symmetricity of overlap will be calculated.
Each group will have 20 eyes with an additional 5 eyes in each group to account for drop outs or poor quality images.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Capsule centration | Other | Capsulorhexis made with capsule centration |
|
| Pupil centration | Other | Capsulorhexis made with pupil centration |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| capsulorhexis | Procedure |
|
| Measure | Description | Time Frame |
|---|---|---|
| Overlap of the Continuous Curvilinear Capsulorhexis margin over the IOL | The horizontal and vertical overlap will be calculated. Horizontal overlap= Overlap of the temporal half versus the nasal half Vertical overlap= overlap of the superior half versus the inferior half of the IOL. Symmetricity of overlap= Horizontal overlap/vertical overlap | 10-30 days post surgery |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Surendra Basti, MD | Northwestern University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Northwestern University | Chicago | Illinois | 60611 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 17321392 | Background | de Castro A, Rosales P, Marcos S. Tilt and decentration of intraocular lenses in vivo from Purkinje and Scheimpflug imaging. Validation study. J Cataract Refract Surg. 2007 Mar;33(3):418-29. doi: 10.1016/j.jcrs.2006.10.054. |
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| ID | Term |
|---|---|
| D019923 | Capsulorhexis |
| ID | Term |
|---|---|
| D002387 | Cataract Extraction |
| D054140 | Refractive Surgical Procedures |
| D013508 | Ophthalmologic Surgical Procedures |
| D013514 | Surgical Procedures, Operative |
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