ABO Optician Practice Test
Preguntas frecuentes
¿Cuántas preguntas de práctica de ABO Optician hay aquí?+
Un banco completo de preguntas originales de ABO Optician en las áreas oficiales, con el peso del examen real y explicaciones. Gratis, sin registro.
¿Cómo es el examen ABO Optician?+
Unas 100 preguntas, 120 minutos. Practica por tema aquí y luego haz el simulacro cronometrado para medir tu preparación.
¿Estas son las preguntas reales del examen?+
No. Cada pregunta es 100% original, escrita de fuentes públicas con explicaciones. Nunca copiamos preguntas reales ni material de preparación pagado.
¿Puedo estudiar en chino o español?+
La práctica de PrepPass está en inglés, 中文 y español. El examen oficial es en inglés — cambia el idioma de las preguntas a inglés para ensayar la terminología del día del examen.
¿Hay una guía de estudio para ABO Optician?+
Sí: PrepPass vende ABO Study Guide — 2026 Edition, en descarga PDF + EPUB, $19.99 pago único; la práctica de esta página sigue siendo gratis sin ella. Ver la guía de estudio →
Preguntas de práctica de ejemplo
Algunas preguntas reales de este banco gratuito, con explicaciones completas. Usa la herramienta de arriba para el banco completo.
- 1. Ophthalmic Optics
What is the focal length of a +2.00 D lens?
- a.10 cm
- b.50 cm
- c.25 cm
- d.200 cm
Respuesta: b
Explicación: Focal length in meters equals 1 divided by the lens power in diopters. 1 / 2.00 = 0.50 m, or 50 cm. A stronger plus lens would have a shorter focal length.
- 2. Ophthalmic Optics
If the distance Rx is -3.00 D and the add is +2.00 D, what is the total power in the reading portion?
- a.-5.00 D
- b.+2.00 D
- c.-1.00 D
- d.-3.00 D
Respuesta: c
Explicación: The near power equals the distance sphere plus the add. -3.00 + 2.00 = -1.00 D in the reading zone.
- 3. Ophthalmic Optics
A prism deviates light in which direction?
- a.Along the axis
- b.Toward the base
- c.Toward the apex
- d.There is no deviation
Respuesta: c
Explicación: Light passing through a prism bends toward the thick base, while the image seen through it displaces toward the thin apex. Prism power is measured in prism diopters.
- 4. Prescription Analysis
Transpose the Rx: +2.00 -1.00 x 090 into plus-cylinder form.
- a.+1.00 -1.00 x 090
- b.+2.00 +1.00 x 090
- c.+1.00 +1.00 x 180
- d.+3.00 -1.00 x 180
Respuesta: c
Explicación: To transpose: add the sphere and cylinder for the new sphere (+2.00 + -1.00 = +1.00), change the cylinder sign (+1.00), and rotate the axis 90 degrees (090 becomes 180). Result: +1.00 +1.00 x 180.
- 5. Prescription Analysis
Compensated (effective) power differs from the prescribed power mainly due to what?
- a.Bridge size
- b.Vertex distance and lens tilt
- c.Frame color
- d.Lens tint
Respuesta: b
Explicación: When a high-powered lens sits at a vertex distance or tilt different from where it was refracted, its effective power on the eye changes, so a compensated power is calculated to preserve the intended correction.
- 6. Prescription Analysis
Compensated power calculations are most critical when the fitted vertex distance differs from what?
- a.The seg height
- b.The frame PD
- c.The refracted vertex distance
- d.The base curve
Respuesta: c
Explicación: The refraction is done at a specific vertex distance; when the dispensed frame sits at a different vertex distance, the effective power shifts, so compensation restores the intended power at the eye.
- 7. Dispensing
High-minus lenses can be made cosmetically thinner at the edge by doing what?
- a.Adding pantoscopic tilt
- b.Using a higher-index material and edge treatments like a roll and polish
- c.Choosing a larger frame
- d.Increasing the base curve
Respuesta: b
Explicación: Higher-index materials reduce edge thickness for minus lenses, and a smaller frame plus proper decentration further reduces thickness. Rolling and polishing the edge improves the cosmetic appearance.
- 8. Dispensing
For a progressive lens, insufficient seg/fitting height (frame too shallow) causes what problem?
- a.Too much add power
- b.Not enough room for the reading zone, cutting off near vision
- c.Distance blur
- d.Excess prism
Respuesta: b
Explicación: Progressive corridors need adequate vertical depth; if the frame's B measurement is too small, the reading portion at the bottom is cut off, leaving the wearer with inadequate near vision.
- 9. Instruments & Regulatory
Under FDA regulations, all dress eyewear lenses sold in the United States must be what?
- a.Impact resistant (capable of passing the drop-ball test)
- b.Made of glass
- c.Tinted
- d.Polarized
Respuesta: a
Explicación: 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.
Fuente: FDA impact resistance
- 10. Optical Math
Using Prentice's rule, how much prism is induced when a +4.00 D lens is decentered 5 mm?
- a.1.0 prism diopter
- b.0.5 prism diopters
- c.2.0 prism diopters
- d.20 prism diopters
Respuesta: c
Explicación: Prentice's rule: prism (prism diopters) = decentration (cm) x power (D). 5 mm = 0.5 cm; 0.5 x 4.00 = 2.0 prism diopters.