ODP Spectacle Practice Test 2 Questions and Answers
What is the index of refraction for crown glass? ** Answ** 1.523
Which instrument is used to determine the refractive power a patient needs? ** Answ**
Phoropter
Which condition causes the intraocular pressure to increase? ** Answ** Glaucoma
Which term means no refractive error? ** Answ** Emmetrope
If the frame is bigger than the patient's PD, what should be done? ** Answ** Move the lens
in during decentration.
When measuring a patient with a pupilometer, which setting is used for a computer distance RX?
** Answ** 200
Which of these is not a type of temple? ** Answ** Head
What is a characteristic of a plus lens? ** Answ** Thicker in the middle
Approximately how strong is the crystalline lens? ** Answ** 17 diopters
What structure regulated the amount of light entering the eye by changing the size of the pupil?
** Answ** Iris
Which prism direction is most commonly used to correct muscle imbalance in exotropia? **
Answ** Base In
Which agency sets standards for sports related products? ** Answ** ASTM
Transpose -3.00 -4.00 x 65 Add +2.00 to a reading RX. ** Answ** -1.00 -4.00 x 65
Which wavelength is the most pleasing to view? ** Answ** Blue-green
When is vertex distance compensation mandatory? ** Answ** Fore spectacle RX +/- 7.00
diopters
What produces aqueous fluid? ** Answ** The ciliary body
, If you were to put a lens with a RX of -3.00 -2.00 x 90 on an optical cross, what powers would
you use? ** Answ** -3.00/-5.00
Calculate the decentration for a patient with a PD of 67 wearing a frame that measures 55/19.
** Answ** 3.5 mm in
Slab off is applied to which lens? ** Answ** Most minus/least plus
What is it called when the eyes have different signs? ** Answ** Antimetropia
In the polariscope a heat treaded glass lens will display a pattern resembling: ** Answ**
Cross
Which tool will tighten a lock nut? ** Answ** Wrench
What process allows you to ensure that no detail are misses when verifying a complete pair of
lenses? ** Answ** A final inspection list.
A plus lens is used to correct what condition? ** Answ** Hyperopia
Which term means tendency? ** Answ** Phoria
Determine the MBS with the following measurements of 60/21 with an ED of 63. The patients
PD is 34/35. ** Answ** 60 and 76 are incorrect
Which direction is slab off ground? ** Answ** Up
What is the measurement of 2 times of the longest radius called? ** Answ** ED
Convert the following RX to a computer RX: -2.00 + 3.00 x 180 Add +2.00 ** Answ**
+2.00 -3.00 x 90
Which base curve is best used for a lens with an RX of -2.00 -.050 x 45 ** Answ** +4.00
Hoe many inches is approximately 1 meter? ** Answ** 40
What is a key difference between an optometrist and an ophthalmologist? ** Answ**
Ophthalmologists go to medical school, optometrists do not.
What increased with the invention of the Guttenberg Press? ** Answ** The use of spectacles
by the common man
What is the index of refraction for crown glass? ** Answ** 1.523
Which instrument is used to determine the refractive power a patient needs? ** Answ**
Phoropter
Which condition causes the intraocular pressure to increase? ** Answ** Glaucoma
Which term means no refractive error? ** Answ** Emmetrope
If the frame is bigger than the patient's PD, what should be done? ** Answ** Move the lens
in during decentration.
When measuring a patient with a pupilometer, which setting is used for a computer distance RX?
** Answ** 200
Which of these is not a type of temple? ** Answ** Head
What is a characteristic of a plus lens? ** Answ** Thicker in the middle
Approximately how strong is the crystalline lens? ** Answ** 17 diopters
What structure regulated the amount of light entering the eye by changing the size of the pupil?
** Answ** Iris
Which prism direction is most commonly used to correct muscle imbalance in exotropia? **
Answ** Base In
Which agency sets standards for sports related products? ** Answ** ASTM
Transpose -3.00 -4.00 x 65 Add +2.00 to a reading RX. ** Answ** -1.00 -4.00 x 65
Which wavelength is the most pleasing to view? ** Answ** Blue-green
When is vertex distance compensation mandatory? ** Answ** Fore spectacle RX +/- 7.00
diopters
What produces aqueous fluid? ** Answ** The ciliary body
, If you were to put a lens with a RX of -3.00 -2.00 x 90 on an optical cross, what powers would
you use? ** Answ** -3.00/-5.00
Calculate the decentration for a patient with a PD of 67 wearing a frame that measures 55/19.
** Answ** 3.5 mm in
Slab off is applied to which lens? ** Answ** Most minus/least plus
What is it called when the eyes have different signs? ** Answ** Antimetropia
In the polariscope a heat treaded glass lens will display a pattern resembling: ** Answ**
Cross
Which tool will tighten a lock nut? ** Answ** Wrench
What process allows you to ensure that no detail are misses when verifying a complete pair of
lenses? ** Answ** A final inspection list.
A plus lens is used to correct what condition? ** Answ** Hyperopia
Which term means tendency? ** Answ** Phoria
Determine the MBS with the following measurements of 60/21 with an ED of 63. The patients
PD is 34/35. ** Answ** 60 and 76 are incorrect
Which direction is slab off ground? ** Answ** Up
What is the measurement of 2 times of the longest radius called? ** Answ** ED
Convert the following RX to a computer RX: -2.00 + 3.00 x 180 Add +2.00 ** Answ**
+2.00 -3.00 x 90
Which base curve is best used for a lens with an RX of -2.00 -.050 x 45 ** Answ** +4.00
Hoe many inches is approximately 1 meter? ** Answ** 40
What is a key difference between an optometrist and an ophthalmologist? ** Answ**
Ophthalmologists go to medical school, optometrists do not.
What increased with the invention of the Guttenberg Press? ** Answ** The use of spectacles
by the common man
