Disclosed herein are compositions and methods for treating, ameliorating or preventing a retinal disease or condition; improving a photopic (day light) vision; for improving correcting visual acuity, improving macular function, improving a visual field, or improving scotopic (night) vision by administration of retinal progenitor cells.本發明係揭露用於治療、改善或預防視網膜疾病或狀態之組合物以及藉由將其給予視網膜前驅細胞來改善明視(日光)視力;改善矯正視力敏銳度;改善黃斑功能;改善視野;或改善暗視(夜間)視力之方法。