16. Villegas E. A., Alcon E., Artal P., "Optical quality of the eye in subjects with normal and excellent visual acuity". Invest. Ophthalmol. Vis. Sci., 49, 4688-4696 (2008).

16. Villegas E. A., Alcon E., Artal P., "Optical quality of the eye in subjects with normal and excellent visual acuity". Invest. Ophthalmol. Vis. Sci., 49, 4688-4696 (2008).