Prospective S&E Study of Wavefront-guided PRK for Myopia With iDesign Advanced Wavescan Studio™ System and Star S4 IR™

Abbott

Status

Completed

Conditions

Stable Myopic Refractive Error, With or Without Astigmatism

Treatments

Device: STAR S4 IR laser with iDesign

Study type

Interventional

Funder types

Industry

Identifiers

STAR-115-MIPS

Details and patient eligibility

About

Prospective, multicenter, bilaterally-treated, open-label, non-randomized clinical trial.

Enrollment

167 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

NOTE: Enrollment open only to military personnel

Inclusion Criteria:

Signed informed consent and HIPAA authorization.
Refractive error, based on the iDesign displayed refraction must be myopia with or without astigmatism with sphere up to -8.00 D, and cylinder between 0.00 D and -4.00 D with maximum SE of -10.00 D.
Anticipated residual stromal bed thickness of at least 250 microns as calculated by the iDesign system.
Distance Best Spectacle Corrected Visual Acuity (BSCVA) of 20/20 or better
BSCVA ≥2 lines (≥10 letters) better than distance Uncorrected Visual Acuity (UCVA).
Less than or equal to 0.75 D difference between cycloplegic and manifest refraction sphere.
Stable refractive error as defined by a change of ≤1.00 D in MRSE over at least a 12 month time period.
Any subject eye with a history of contact lens wear within the last 4 weeks must demonstrate refractive stability
Agreement between manifest refraction (adjusted for optical infinity) and iDesign System refraction chosen for treatment.
Willing and capable of complying with follow-up examinations for the duration of the study.

Exclusion Criteria:

Women who are pregnant, breast-feeding, or intend to become pregnant, or not using an adequate method of birth control.
Concurrent use of systemic (including inhaled) medications that may impair healing.
History of any of the following medical conditions, or any other condition that could affect wound healing: collagen vascular disease, autoimmune disease, immunodeficiency diseases, ocular herpes zoster or herpes simplex, endocrine disorders (including, but not limited to unstable thyroid disorders and diabetes), lupus, and rheumatoid arthritis.
Subjects with a cardiac pacemaker, implanted defibrillator or other implanted electronic device.
History of prior intraocular or corneal surgery, active ophthalmic disease or abnormality, retinal detachment/repair, clinically significant lens opacity, clinical evidence of trauma, corneal opacity within the central 9 mm and visible on topography, at risk for developing strabismus, or with evidence of glaucoma or propensity for narrow angle glaucoma.
Evidence of keratoconus, corneal dystrophy or irregularity, or abnormal topography
Known sensitivity or inappropriate responsiveness to any of the medications used in this study.
If either eye does not meet all inclusion criteria
Desire to have monovision.
Participation in any other clinical study, with the exception of the fellow eye in this study.