CSLB General Building (B) — All Questions

A lensmeter (focimeter) is used to measure what?

• a.Pupillary distance
• b.The power, axis, add, and optical center of a lens✓
• c.Frame temple length
• d.Corneal curvature

The lensmeter reads a lens's sphere and cylinder power, cylinder axis, add power, optical center location, and any prism. It is the primary verification instrument in an optical lab and dispensary.

A pupillometer is designed to measure what?

• a.Monocular and binocular pupillary distance✓
• b.Lens power
• c.Segment height
• d.Base curve

A pupillometer measures the distance between the pupils, providing accurate monocular and binocular PD readings and can be set for distance or near, improving accuracy over a simple PD ruler.

Under FDA regulations, all dress eyewear lenses sold in the United States must be what?

• a.Made of glass
• b.Tinted
• c.Impact resistant (capable of passing the drop-ball test)✓
• d.Polarized

The FDA requires prescription and non-prescription dress lenses to be impact resistant, historically demonstrated by the drop-ball test, to protect wearers from lens shattering into the eye.FDA impact resistance

The FDA drop-ball test for impact resistance drops what onto the lens?

• a.A rubber mallet
• b.A metal rod
• c.A hammer
• d.A 5/8-inch steel ball from 50 inches✓

The drop-ball test drops a 5/8-inch (15.9 mm) steel ball weighing about 16 grams from a height of 50 inches onto the lens; the lens must not fracture to demonstrate impact resistance.FDA impact resistance

ANSI Z80.1 is the American National Standard that specifies what?

• a.Tolerances and requirements for prescription ophthalmic (dress) lenses✓
• b.Building fire codes
• c.Contact lens solutions
• d.Frame color standards

ANSI Z80.1 sets the recommended tolerances and requirements for prescription dress eyewear, including allowable deviations in power, cylinder axis, add, prism, and marking, guiding lens verification.ANSI Z80

Occupational and safety eyewear in the U.S. is governed by which standard?

• a.ANSI Z80.1
• b.ANSI Z87.1✓
• c.FDA drop-ball only
• d.HIPAA

ANSI Z87.1 sets requirements for occupational and educational personal eye protection, specifying high-impact testing and markings. Dress eyewear follows ANSI Z80.1, a different, less stringent impact standard.ANSI Z80

Safety frames and lenses that meet the high-impact standard are marked with what?

• a.FDA
• b.Z80
• c.Z87+ (the plus indicating high impact)✓
• d.AR

Under ANSI Z87.1, high-impact-rated safety eyewear is marked 'Z87+', where the plus sign denotes passing the high-velocity and high-mass impact tests; basic-impact eyewear is marked 'Z87' without the plus.ANSI Z80

Under HIPAA, a patient's prescription and health information must be handled how?

• a.Posted publicly
• b.Shared with any vendor
• c.Discarded openly
• d.Kept private and disclosed only as permitted✓

HIPAA requires that protected health information, including a patient's optical prescription and records, be kept confidential and disclosed only to authorized parties or as the patient permits.HIPAA

A distometer is used to measure what?

• a.Vertex distance from the cornea to the back of the lens✓
• b.Pupillary distance
• c.Lens power
• d.Frame width

A distometer measures the vertex distance between the front of the eye and the back surface of the lens, information needed for accurate power compensation in higher prescriptions.

Professional ethics require an optician who discovers a possible prescription error to do what?

• a.Fill it as written without comment
• b.Verify with the prescriber before dispensing✓
• c.Change the Rx independently
• d.Refuse all service

Ethical and safe practice requires the optician to confirm a questionable or seemingly erroneous prescription with the prescribing doctor rather than guessing or unilaterally altering it, protecting the patient.

A Geneva lens clock (lens measure) reads what?

• a.Lens power in the eye
• b.Pupillary distance
• c.Surface curvature (base curve) of a lens✓
• d.Prism amount

A lens clock, or Geneva lens measure, uses three pins to measure the sag of a lens surface and reports the surface curve in diopters, commonly used to check base curve and detect warpage.

When cleaning and handling patient frames and instruments, an optician maintains professionalism by doing what?

• a.Ignoring hygiene
• b.Reusing dirty cloths
• c.Skipping calibration
• d.Following sanitation and equipment-calibration routines✓

Regular sanitation of tools and frames and periodic calibration of instruments such as the lensmeter and pupillometer ensure accurate measurements and hygienic, professional service to patients.