Clinical Trial of the Femtosecond Laser System VisuMax for Refractive Correction of Hyperopia by Means of Lenticule Extraction

Inclusion Criteria: * older than 21 years of age, * maximum hyperopic meridian between +1.00D and +7.00D * astigmatism up to 6D * CDVA of: 1. 20/200 or worse in the eye(s) being treated for Phase I 2. Between 20/200 and 20/100 in the eye(s) being treated for Phase II 3. Between 20/40 and 20/60 in the eye(s) being treated for Phase III 4. 20/25 or better for Phase IV * total uncut stromal thickness of more than 300 µm * no previous refractive surgery, * no ocular disease, * normal corneal topography, * contact lens wearers have to stop wearing hard contact lenses at least 4 weeks and soft contact lenses 2 weeks prior to pre-examination, * willing to attend follow-up examinations within the scope of the clinical investigation, * able and willing to sign the informed consent Exclusion Criteria: * patients who are not being able to lie flat in a horizontal position, * patients who are not being able to understand and give informed consent, * pregnant or nursing women (or women who are planning to became pregnant during the clinical investigation), * diagnosis of an autoimmune disease (e.g. AIDS), connective tissue disease or diabetes, * treatment with medications such as steroids or immune-suppressants, * herpes simplex or herpes zoster keratitis, * all standard medical exclusion criteria for LASIK