Orbital rule 2 : Ocular lesions

If we have a lesion in the globe, we must remember a very crucial rule which is that the age of the patient here is very important to make the proper diagnosis.
These lesions are
1-Retinoblastoma.
2-Melanoma.
3-Deposits.
4-Others.
Retinoblastoma affect childhood while melanoma affects adults, while metastases suggested by presence of known primary.