Topic 14-15 Part 1: Special Sensory Organs

A patient presents with a stye (hordeolum). This infection affects which structure?

• Meibomian (tarsal) glands

• Lacrimal sac

• Lacrimal gland

• Retina

A patient presents with bilateral reddening and irritation of the eyes. The patient reports that this happens every Spring. What is this patient suffering from?

• Viral conjunctivitis
• Bacterial conjunctivitis
• Dry eye syndrome
• Allergic conjunctivitis

Emily, a 25-year-old woman, presented to the ophthalmology clinic with complaints of redness, irritation, and discharge in both eyes. On examination, conjunctival injection and purulent discharge were evident. What is Emily's diagnosis?

• Glaucoma
• Allergic conjunctivitis

• Viral conjunctivitis

• Bacterial conjunctivitis

Glaucoma affects which structure responsible for drainage of humor from the eye?

• Ciliary bodies of the posterior chamber

• The Canal of Schlemm and the trabecular meshwork

• Cornea
• Lens

Which ocular structure changes the shape of the lens?

• Retina
• Cornea
• Iris
• Ciliary muscles

The accommodation reflex causes pupillary dilation when looking at objects ___.

• far away
• in the dark
• while blinking
• up close

In the eys, cones are for ___ while rods are for ___.

• color vision, low-light and peripheral vision
• black and white vision, color

• peripheral vision, color

• high-light vision, central vision

The region of the eye with the greatest concentration of cones:

• Blind spot
• Fovea centralis
• Optic nerve
• Sclera

Vitamin A deficiency would result in what eye pathology?

• Cataracts and glaucoma
• Color blindness and macular degeneration
• Astigmatism and retinal detachment
• Night blindness

Individuals with ___ can't see up close, whereas individuals with ___ can't see distant objects.

• Astigmatism, Presbyopia
• Color blindness, Glaucoma
• Cataracts, Retinopathy
• Hyperopia, Myopia