Short-Wavelength Light–Blocking Filters and Oral Melatonin Administration in Patients With Retinitis Pigmentosa: Protocol for a Randomized Controlled Trial

Salvador Pastor-Idoate   ^{1, 2, 3, 4 *} , MD, Prof Dr ;   Milagros Mateos-Olivares   ^{2, 5 *} , MD ;   Eva María Sobas   ^{1, 6} , BSc ;   Miguel Marcos   ^{7, 8} , MD ;   Alfredo Toribio   ⁹ , BSc ;   José Carlos Pastor   ^{1, 3, 4} , MD, Prof Dr ;   Ricardo Usategui Martín   ^{1, 10} , MSc, PhD

¹ Institute of Applied Ophthalmobiology, University of Valladolid, Valladolid, Spain

² Department of Ophthalmology, Clinical University Hospital of Valladolid, Valladolid, Spain

³ Networks of Cooperative Research oriented to Health Results, National Institute of Health Carlos III, Madrid, Spain

⁴ European Reference Network dedicated to Rare Eye Diseases, Valladolid, Spain

⁵ Department of Ophthalmology, Clinical University Hospital of Caceres, Caceres, Spain

⁶ Nursing School, University of Valladolid, Valladolid, Spain

⁷ Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain

⁸ Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain

⁹ Federation of Associations of Hereditary Retinal Dystrophies in Spain, Valladolid, Spain

¹⁰ Department of Cellular Biology, Faculty of Medicine, University of Valladolid, Valladolid, Spain

*these authors contributed equally