Part 1 FRCOphth Practice Questions - Part 1 FRCOphth Examination Exam

Access More Questions

A patient with keratoconus shows irregular astigmatism that spectacles cannot correct well. Which optical principle best explains why a rigid gas-permeable contact lens improves vision more than glasses?

The rigid lens corrects the axial length of the eye The rigid lens flattens the cornea permanently, removing the cone The rigid lens increases the refractive index of the cornea The tear film between the rigid lens and cornea creates a new, regular refracting front surface

Correct Answer:

The tear film between the rigid lens and cornea creates a new, regular refracting front surface

Access more questions from this quiz

Continue to Part 1 FRCOphth Practice Questions - Part 1 FRCOphth Examination Exam for more practice questions and the full quiz experience.

Access More Questions