Solve the Formula for the Variable

question 36

Multiple Choice

Solve the formula for the variable .

---

Definitions:

Trichiasis

A condition where eyelashes grow abnormally and irritate the eyes.

Xerophthalmia

A medical condition characterized by dry eyes due to a lack of vitamin A, which can lead to vision problems.

Orthoptics

A branch of ophthalmology dealing with the diagnosis and treatment of defective vision and the management of eye movement disorders.

Lens

A piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used in glasses and cameras.