NATIONAL VISION OPTOMETRIC TECHNICIAN Level 2 National Vision Inc. / Paraoptometric Standards 2026/2027 - Verified Q&A; | Graded A+

NATIONAL VISION OPTOMETRIC TECHNICIAN
Level 2
National Vision Inc. / Paraoptometric Standards
2026/2027 - Verified Q&A; | Graded A+




National Vision Optometric Tech L2 | 2026/2027 Page 1

, TABLE OF CONTENTS - AREAS COVERED
Section 1: Ocular Anatomy, Physiology & Disease Page 3

Section 2: Optics, Lensometry & Keratometry Page 10

Section 3: Visual Acuity, Refraction & Binocular Vision Page 18

Section 4: Contact Lenses, Frames & Dispensing Page 26

Section 5: Clinical Procedures & Safety Page 34

Answer Key Page 42




National Vision Optometric Tech L2 | 2026/2027 Page 2

, Section 1: Ocular Anatomy & Disease (20 Qs)

Q1. Cornea main refractive power from?
A) Epithelium
B) Stroma
C) Air-tear interface
D) Endothelium
Correct: C
Rationale: Air-tear interface ~43D, 2/3 of eye power.

Q2. Aqueous drains via?
A) Trabecular to Schlemm
B) Uveoscleral only
C) Retinal
D) Cornea
Correct: A
Rationale: Conventional outflow trabecular to canal of Schlemm.

Q3. +2.00 -1.00 x180 transpose?
A) +1.00 +1.00 x90
B) +1.00 -1.00
C) +2 +1 x90
D) +1 +1 x90
Correct: A
Rationale: Sphere+cyl new sphere, flip cyl sign, axis +-90.

Q4. Prentice 4D at 10mm?
A) 2
B) 4
C) 0.4
D) 40
Correct: B
Rationale: P x dec(cm): 4x1=4 prism.

Q5. Keratometer measures?
A) Axial length
B) Corneal curvature D
C) Thickness
D) IOP
Correct: B
Rationale: Central 3mm curvature mm to D n=1.3375.

Q6. 20/40 means?



National Vision Optometric Tech L2 | 2026/2027 Page 3