Ophthalmic Technician

Answer: B - The end point of applanation tonometry is when the inner ends of the semi - circular mires meet and coincide.

The dial of the applanation tonometer is moved until the two inner ends of the semi - circular mires meet forming an inverted “S” shape and the dial reading is noted. It is important to have optimal thickness of the mires, because too thick or too thin mires can give rise to false or erroneous results.