Related Clues:

• Method of paying Stringer on ship for medical device
• Sci-fi ''beam'' weapon
• "Star Wars" weapon
• Vision-correcting aid
• E.g. surgical light-beam
• Source of light; type of printer
• Skull the Spanish attached with small knife
• What leads in lens and surgical eye repairs
• Failure needs a second type of surgery
• No live wire, we hear, in this scientific device
• At start of series, left a beamer
• Intense light generator
• Intense light device
• Knife left in various places
• Scientific device - one that conserves energy, we hear