A Person with Cataracts Was Treated by Surgically Removing the Lenses

question 29

Multiple Choice

A person with cataracts was treated by surgically removing the lenses of his eyes. The type of glasses he should get to compensate for the removal of his lenses would be

• A) concave lenses.
• B) convex lenses.
• C) glasses to compensate for astigmatism.

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Definitions:

Interchangeable Parts

A manufacturing system where components are made to such precise standards that they can be swapped with similar parts in other assemblies without custom fitting.

Eli Terry

An American clockmaker from the early 19th century, known for his role in developing mass production techniques in clockmaking, significantly impacting the industry.

German Immigrants

Individuals from Germany who migrated to another country, significantly impacting the cultural and social composition of their new communities, especially in the 19th and early 20th centuries.

Craftsmen

Skilled workers who create products using their hands, often employing traditional techniques in various trades such as carpentry, metalwork, or weaving.