Which of the following is True regarding intraocular retinoblastoma?

Retinoblastoma MC ocular tumor of childhood. 40% are hereditary, aka Germline retinoblastoma. B/L, multifocal, earlier presentation 60% are non hereditary or sporadic U/L, later presentation C/F: Leucocoria(Amaurotic cat's eye pupil)- MC presentation Strabismus(2nd MC) Neo vascular glaucoma(3rd MC) International classification of retinoblastoma (ICRB), which is presently being followed worldwide to decide the treatment modality.