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The objective of this clinical trial is to evaluate the safety and effectiveness of the Carl Zeiss Meditec VisuMax™ Femtosecond Laser lenticule removal procedure for the reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE (Manifest Refractive Spherical Equivalent) ≤ -8.25 D.
This is a prospective multi-center clinical trial in which a total of 360 eyes of consecutive subjects will be enrolled, treated with the VisuMaxâ„¢ Femtosecond Laser, and followed for a 12-month period. The study will be conducted at up to 8 clinical sites.
Enrollment will be phased such that 100 eyes will be initially enrolled and followed. When 50 of the initial eyes have reached the 3-month follow-up exam, an interim clinical study report will be submitted to FDA along with a request to continue enrollment up to 360 eyes.
Subjects will be screened for eligibility, and informed consent will be obtained from those who meet screening criteria and are interested in participating in the study. Eligible subjects will be examined preoperatively to obtain a medical history and to establish a baseline ocular condition. Baseline and postoperative measurements will include manifest refraction, cycloplegic refraction, distance visual acuity (best corrected and uncorrected), slit-lamp examination, fundus examination, corneal topography, central corneal pachymetry, mesopic pupil measurement, wavefront analysis, mesopic contrast sensitivity, and intraocular pressure (IOP).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Treatment of Myopia | Other | The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Treatment with the VisuMax™ Femtosecond Laser | Device | The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Effectiveness- Predictability of Participant Refractive Outcomes | Number of participants with a decrease in manifest refraction spherical equivalent (MRSE) to within ± 1.00 D and ± 0.50 D of the intended refractive outcome at the point at which stability is first reached. The MRSE is the amount of prescription needed to obtain your best corrected vision as compared to your preoperative best corrected vision. A minimum of 75% of eyes should have an achieved refraction within ± 1.00 D of the intended outcome, and at least 50% of eyes should be within ± 0.50 D of the intended outcome. | 12 months |
| Effectiveness- Number of Participants With an Improvement in UCVA Following Treatment | Number of participants with uncorrected visual acuity (UCVA) of 20/40 or better at the point of stability. .This is vision without any form of prescription. A target of 85% of participants is required. | 12 month |
| Stability Criteria- Number of Participants With a Change Between Visits Within 1.00 Diopter (D) | Number of participants with a change in postoperative refraction within 1.00 D between the 3 and 6 month visits. Stability was identified at the 6 month visit for the study. | 6 months |
| Safety- Number of Participants With a Preservation of Best-Spectacle Corrected Visual Acuity (BSCVA) |
| 12 months |
| Safety- Number of Participants With Induced Manifest Refractive Astigmatism | Number of participants with an increase of astigmatism of greater than 2.00 D cylinder from the preoperative values. Target is less than 5% of participants. |
| Measure | Description | Time Frame |
|---|---|---|
| Safety- Participant Symptoms | A standardized quality of vision (QoV) questionnaire was used in the study. A score is generated and was used to compare the results from baseline to the 12 month visit. Number of participants who improved, stayed the same, or worsened with regards to the frequency, severity, and bothersomeness of symptoms are reported. | 12 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Jon Dishler, M.D. | Dishler Laser Institute | Principal Investigator |
| John Doane, M.D. | Discover Vision Centers | Principal Investigator |
| Vance Thompson, M.D. | Vance Thompson Vision Clinic, Prof., LLC | Principal Investigator |
| William Culbertson, M.D. | Bascom Palmer Eye Institute | Principal Investigator |
| Sonia Yoo, M.D. | Bascom Palmer Eye Institute | Principal Investigator |
| John Vukich, M.D. | Davis Duehr Dean | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Dishler Laser Institute | Greenwood Village | Colorado | 80111 | United States | ||
| Bascom Palmer Eye Institute |
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| ID | Title | Description |
|---|---|---|
| FG000 | Treatment of Myopia | The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. Treatment with the VisuMax™ Femtosecond Laser: The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. |
| Title | Milestones | Reasons Not Completed | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Treatment of Myopia | The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. Treatment with the VisuMax™ Femtosecond Laser: The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Effectiveness- Predictability of Participant Refractive Outcomes | Number of participants with a decrease in manifest refraction spherical equivalent (MRSE) to within ± 1.00 D and ± 0.50 D of the intended refractive outcome at the point at which stability is first reached. The MRSE is the amount of prescription needed to obtain your best corrected vision as compared to your preoperative best corrected vision. A minimum of 75% of eyes should have an achieved refraction within ± 1.00 D of the intended outcome, and at least 50% of eyes should be within ± 0.50 D of the intended outcome. | The number reflected at the 12 month visit is the effectiveness population. | Posted | Count of Participants | Participants | 12 months |
|
approximately 2 years, 11 months
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Treatment of Myopia | The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. Treatment with the VisuMax™ Femtosecond Laser: The reduction or elimination of myopia from ≥ -1.00 D to ≤ -8.00 D with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D. |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Decrease in BSCVA of greater than or equal to 2 lines | Eye disorders | Systematic Assessment | A decrease in best spectacle corrected visual acuity (BSCVA) of greater than or equal to 2 lines not due to irregular astigmatism as shown by hard contact lens refraction at 3 months or later |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Todd Otani, Senior Clinical Research Scientist | Carl Zeiss Meditec, Inc. | 925-557-4513 | todd.otani@zeiss.com |
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| ID | Term |
|---|---|
| D009216 | Myopia |
| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| D013812 | Therapeutics |
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|
| 12 months |
| Safety- Number of Participants With Adverse Events | Number of participants for each type of adverse event. Target of less than 1% of participants for each type of adverse event. | 12 months |
| Safety- Contrast Sensitivity of Participants | Number of participants who increased, remained the same, and decreased in contrast sensitivity. There are 4 different frequencies (1.5, 3.0, 6.0, and 12.0) which will be tested and are more difficult to detect as the frequency number increases. | 12 months |
| Stability Criteria- Number of Participants With a Change Between Visits Within 0.50 Diopter (D) | Number of participants with a change in postoperative refraction within 0.50 D between the 3 and 6 month visits. Stability was identified at the 6 month visit for the study. | 6 months |
| Miami |
| Florida |
| 33136 |
| United States |
| Discover Vision Centers | Leawood | Kansas | 66211 | United States |
| Vance Thompson Vision | Sioux Falls | South Dakota | 57108 | United States |
| Davis Duehr Dean | Madison | Wisconsin | 53717 | United States |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Race/Ethnicity, Customized | Count of Participants | Participants |
|
| Surgical Eye | Count of Participants | Participants |
|
|
|
| Primary | Effectiveness- Number of Participants With an Improvement in UCVA Following Treatment | Number of participants with uncorrected visual acuity (UCVA) of 20/40 or better at the point of stability. .This is vision without any form of prescription. A target of 85% of participants is required. | The number reflected at the 12 month visit is the effectiveness population. | Posted | Count of Participants | Participants | 12 month |
|
|
|
| Primary | Stability Criteria- Number of Participants With a Change Between Visits Within 1.00 Diopter (D) | Number of participants with a change in postoperative refraction within 1.00 D between the 3 and 6 month visits. Stability was identified at the 6 month visit for the study. | Posted | Count of Participants | Participants | 6 months |
|
|
|
| Primary | Safety- Number of Participants With a Preservation of Best-Spectacle Corrected Visual Acuity (BSCVA) |
| Posted | Count of Participants | Participants | 12 months |
|
|
|
| Primary | Safety- Number of Participants With Induced Manifest Refractive Astigmatism | Number of participants with an increase of astigmatism of greater than 2.00 D cylinder from the preoperative values. Target is less than 5% of participants. | Posted | Count of Participants | Participants | 12 months |
|
|
|
| Primary | Safety- Number of Participants With Adverse Events | Number of participants for each type of adverse event. Target of less than 1% of participants for each type of adverse event. | Posted | Count of Participants | Participants | 12 months |
|
|
|
| Primary | Safety- Contrast Sensitivity of Participants | Number of participants who increased, remained the same, and decreased in contrast sensitivity. There are 4 different frequencies (1.5, 3.0, 6.0, and 12.0) which will be tested and are more difficult to detect as the frequency number increases. | Posted | Count of Participants | Participants | 12 months |
|
|
|
| Primary | Stability Criteria- Number of Participants With a Change Between Visits Within 0.50 Diopter (D) | Number of participants with a change in postoperative refraction within 0.50 D between the 3 and 6 month visits. Stability was identified at the 6 month visit for the study. | Posted | Count of Participants | Participants | 6 months |
|
|
|
| Secondary | Safety- Participant Symptoms | A standardized quality of vision (QoV) questionnaire was used in the study. A score is generated and was used to compare the results from baseline to the 12 month visit. Number of participants who improved, stayed the same, or worsened with regards to the frequency, severity, and bothersomeness of symptoms are reported. | Posted | Count of Participants | Participants | 12 months |
|
|
|
| 0 |
| 336 |
| 0 |
| 336 |
| 14 |
| 336 |
|
| Viral conjunctivitis | Eye disorders | Systematic Assessment | An inflammatory process of the conjunctiva due a virus. |
|
| Retinal vasculitis | Eye disorders | Systematic Assessment | A retinal blood vessel inflammation seen inside the eye. |
|
| Conjunctival carcinoma in situ | Eye disorders | Systematic Assessment | A cancerous growth on the conjunctiva. |
|
| Allergic conjunctivitis | Eye disorders | Systematic Assessment | an inflammatory process of the conjunctiva due to an allergen. |
|
| Difficult lenticule removal with tissue damage | Eye disorders | Systematic Assessment | During the surgical procedure, the process of removing the lenticule caused damage to the cornea around the incision site. |
|
| Herpetic lid and corneal lesion | Eye disorders | Systematic Assessment | A lid lesion and a corneal finding associated with the herpes virus. |
|
| Iritis | Eye disorders | Systematic Assessment | An inflammatory process of the iris. |
|
| Posterior vitreous detachment | Eye disorders | Systematic Assessment | The gel within the eye starts to change consistency and starts to constrict within the eye. |
|
| Perforated cap | Eye disorders | Systematic Assessment | During the surgical process, a hole was created in the corneal flap during the lenticule removal process. |
|
| Pyogenic granuloma | Eye disorders | Systematic Assessment | A non-cancerous growth on the lower lid. |
|
| Retained tissue | Eye disorders | Systematic Assessment | During the surgical process, a small amount of tissue was retained which was seen on observation. |
|
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|
| Conjunctivitis, allergic |
|
| Conjunctivitis, viral |
|
| Herpetic lid and corneal lesion |
|
| Iritis |
|
| posterior vitreous detachment |
|
| Pyogenic Granuloma |
|
| Retained tissue, small |
|
| Difficult lenticule removal with tissue damage |
|
|
| Severity |
|
| Bothersome |
|