NCT Number: NCT04219891
The purpose of this study is to evaluate the safety and effectiveness of the WaveLight EX500 excimer laser system for the correction of myopia with and without astigmatism using InnovEyes in conjunction with InnovEyes sightmap.
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Notify Me18 year and older
All sexes
Interventional
Not applicable
Alcon Investigative Site, San Diego, California, United States
Qualified subjects will receive treatment in both eyes and be followed for 1 year. Subjects will be asked to attend a total of 9 visits (Screening, Day 0 Surgery, Day 1, Week 1, Month 1, Month 3, Month 6, Month 9, and Year 1). The primary endpoints will be assessed at refractive stability, defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at 3 months after surgery when compared with the 1-month visit) that meets all the protocol-specified stability requirements. Total expected duration of subject participation is approximately 1 year. This study will be conducted in the United States.
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Key Inclusion Criteria:
Key Exclusion Criteria:
Other protocol-specified inclusion and exclusion criteria may apply.
FDA approved stationary scanning-spot excimer laser system used during refractive surgery for the treatment of myopia, myopic astigmatism, hyperopia, hyperopic astigmatism, and mixed astigmatism. For this clinical study, the WaveLight EX500 software will be upgraded to include the InnovEyes treatment.
Procedure that reshapes the front part of the eye (cornea) so that light traveling through it is properly focused on the back part of the eye (retina). The procedure will be performed using the WaveLight EX500 excimer laser system and data obtained from the InnovEyes sightmap.
Non-contact ophthalmic diagnostic device that captures images of the eye and collects ocular data preoperatively to generate a patient-specific ablation profile for refractive correction surgery
Time frame: Preoperative Visit (Day -30 to Day -1), Month 1, Month 3
Visual acuity (VA) was assessed using Early Treatment of Diabetic Retinopathy Study (ETDRS) charts at a distance of 4 meters and reported in Snellen, where 20/20 indicates normal distance eyesight. Preoperatively, VA was assessed with correction in place. Postoperatively, VA was assessed with no correction in place. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A higher percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Month 1, Month 3
A manifest refraction (manual refraction) was performed using a phoropter. The spherical equivalent was calculated by adding the sum of the sphere power with half of the cylinder power and reported in diopters. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive Stability was considered to be achieved at the Month 3 visit. A higher percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Month 1, Month 3
A manifest refraction (manual refraction) was performed using a phoropter. The spherical equivalent was calculated by adding the sum of the sphere power with half of the cylinder power and reported in diopters. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A higher percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Preoperative Visit (Day -30 to Day -1), Month 1, Month 3
A manifest refraction (manual refraction) was performed using a phoropter. The spherical equivalent was calculated by adding the sum of the sphere power with half of the cylinder power and reported in diopters. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A higher percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Day -30 to -1 (preoperative), up to Month 3
VA was assessed using ETDRS charts at a distance of 4 meters with correction in place. BCDVA was measured in Snellen, where 20/20 indicates normal distance eyesight. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A lower percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Day -30 to -1 (preoperative), up to Month 3
VA was assessed using ETDRS charts at a distance of 4 meters with correction in place and measured in logarithm Minimum Angle of Resolution, where each line on the letter chart represents 0.1 Snellen and 0.0 logMAR equates to 20/20 Snellen, or normal distance eyesight. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A lower percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Day -30 to -1 (preoperative), up to Month 3
Manifest refractive astigmatism is the cylindrical portion of the subjective refraction. It is measured with ETDRS charts at a distance of 4 meters. Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A lower percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Time frame: Up to Month 3
An adverse event was defined as any untoward medical occurrence, unintended disease or injury, or untoward clinical signs (including abnormal laboratory findings) in subjects, users or other persons, whether or not related to the investigational medical device (test product). Refractive stability was defined as the latter of two postoperative manifest refractions performed at least 3 months apart (or at Month 3 after surgery when compared with the Month 1 visit) that meets all the protocol-specified stability requirements. Refractive stability was considered to be achieved at the Month 3 visit. A lower percentage indicates a better outcome. Both eyes contributed data to this analysis. No hypothesis testing was pre-specified for this endpoint. This is a co-primary endpoint.
Alcon Research
Industry
Pivotal Trial of WaveLight® EX500 Excimer Laser System for the Correction of Myopia With and Without Astigmatism Using InnovEyes™ in Conjunction With InnovEyes™ Sightmap
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