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This work aims at the analysis of ocular aberrations induced by wave front optimized ablation profiles WFO using I-Trace aberrometer (Ray -Tracing)
The iTrace (Tracey Technologies, Houston, Tx) is uniquely designed to combine Placido corneal topography with a ray tracing aberrometer to measure quality of vision in a patient. This work aims at the analysis of ocular aberrations induced by wave front optimized ablation profiles WFO using I-Trace aberrometer (Ray -Tracing)
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Laser in situ keratomileusis | Experimental | A prospective clinical study including 20 eyes of 10 cases undergoing laser in situ keratomileusis (LASIK) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| LASIK | Device | All cases were operated upon using Wavelight Allegretto EX-500 excimer laser (Alcon Laboratories, Inc., Fort Worth, TX) with wave front optimized ablation profile WFO. The Moria II microkeratome (Moria, Anthony, France) was used in all cases. |
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of ocular aberrations | 3. Evaluation of ocular aberrations done using iTrace Visual Functional Analyzer (ray tracing technology) to quantify changes in total higher order aberrations, coma, spherical aberrations, secondary astigmatism and trefoil after LASIK surgery | 3 months |
| Visual acuity | Unaided as well as best corrected visual acuity | 3 months |
| Manifest refraction | Manifest refraction | 3 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ehab Mossallam, PhD | Alexandria Faculty of Medicine | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Alexandria Faculty of Medicine | Alexandria | Egypt |
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| ID | Term |
|---|---|
| D009216 | Myopia |
| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| D020731 | Keratomileusis, Laser In Situ |
| ID | Term |
|---|---|
| D048988 | Corneal Surgery, Laser |
| D053685 | Laser Therapy |
| D013812 | Therapeutics |
| D055011 | Ablation Techniques |
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A prospective clinical study including 20 eyes of 10 cases undergoing LASIK with wave front optimized ablation profile
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| D013514 |
| Surgical Procedures, Operative |
| D000074431 | Keratectomy |
| D054140 | Refractive Surgical Procedures |
| D013508 | Ophthalmologic Surgical Procedures |