ROUB PREPARATION TEST 2026
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● number one error in contact Ascan biometry. Answer: corneal
compression
● what frequency is A/Bscan?. Answer: 10 million Hz or 10MHz
● exxtremely resolutio allows for. Answer: restricted depth of
penetration of the sound into the body also excellent resolution of small
structures
● velocity of sound is determined completely by. Answer: the density of
the medium through which it passes
● sound travels faster through solids or liquids. Answer: solids
● what is the sound velocity of the cornea and the lens. Answer: 1641
m/s
● what is the sound velocity of the aqueous and the vitreous. Answer:
1532 m/s
QUESTIONS AND CORRECT ANSWERS
GRADED A+
● number one error in contact Ascan biometry. Answer: corneal
compression
● what frequency is A/Bscan?. Answer: 10 million Hz or 10MHz
● exxtremely resolutio allows for. Answer: restricted depth of
penetration of the sound into the body also excellent resolution of small
structures
● velocity of sound is determined completely by. Answer: the density of
the medium through which it passes
● sound travels faster through solids or liquids. Answer: solids
● what is the sound velocity of the cornea and the lens. Answer: 1641
m/s
● what is the sound velocity of the aqueous and the vitreous. Answer:
1532 m/s