Modifiers matching landmark:

• surgical,
• anatomical,
• anatomic,
• popular,
• famous,
• architectural,
• facial,
• suitable,
• key,
• bony,
• historic,
• osseous,
• national,
• fiducial,
• external,
• surrounding,
• skeletal,
• visible,
• historical,
• convenient,
• logical,
• chromosomal,
• physical,
• morphological,
• internal,
• nearby,
• natural,
• anthropological,
• permanent,
• interesting,
• usual,
• vital,
• world,
• significant,
• fixed,
• prominent,
• basic,
• adjacent,
• molecular,
• retinal,
• genetic,
• size,
• important,
• cultural,
• morphologic,
• major,
• identifiable,
• local,
• cranial,
• additional,
• common,
• familiar,

Simple categories matching retinal:

• disease,
• structure,
• disorder,
• degeneration,
• landmark,
• abnormality,
• pathology,
• change,
• feature,
• cell,
• layer,
• complication,
• neuron,
• tumor,
• condition,
• lesion,
• disturbance,
• problem,
• area,