Ophthalmology with no pictures :) Flashcards
How does age affect pupil size?
The older the patient, the smaller the pupil
Physiologic anisocoria
- Pupils of different sizes
- Normal
- Affects about 20% of the population
More technical term for “accommodation”
Near synkenesis
Psychosensory reflex
When people become startled, their pupils momentarily dilate
Term describing the small, regular movements of the pupils when examined under high magnification
Pupillary unrest
Which nervous system is responsible for pupil dilation?
Sympathetic (NE)
Which nervous system is responsible for pupil constriction?
Parasympathetic (ACh)
Which nucleus in the brain receive information from the optic tract?
Prenectal nucleus
Central scotomas
An area of reduced or absent vision in the center of vision, within an otherwise intact visual field
An area of reduced or absent vision in the center of vision, within an otherwise intact visual field
Central scotomas
Loss of either the right half or the left half of the visual field on the same side of each eye
Homonymous visual field defects
Ametropia
Refractive errors
Umbrella term for all “refractive errors”
Ametropia
Emmetropia
Absolutely no refractive errors
Term referring to absolutely no refractive errors
Emmetropia
Refractive error in which you can see clearly close up, bur far away vision is blurred
Myopia
Is a myopic eye too short or too long?
Too long
Is a hyperopic eye too short or too long?
Too short
Refractive error in which you can see clearly far away, but close-up vision is blurred
Hyperopia
Refractive error in which the patient is unable to see close-up due to lens changes
Presbyopia
Presbyopia
Unable to see close-up due to lens changes
What should you think if a cornea looks like “ground glass”?
- Corneal edema
- When the cornea takes on a lot of water, it will get hazy or whitish
MCC of corneal edema
Angle-closure glaucoma
Bleeding inside the eye (what’s it called?)
Hyphema
MCC of Hyphema
- Diabetes
- If not diabetes, MCC is trauma