Ophthalmology Questions
Explore questions in the Ophthalmology category that you can ask Spark.E!
What breeds are most common to suffer from an entropian?
Where do the dorsal and ventral folds of the eyelids meet?
What gland produces the lipid portion of the tear film?
Where does the sclera meet the cornea?
1. observation 2. hands on normal light 3. hands on darkened room 4. distant direct opthalmoscopy 5. close direct opthalmoscopy
posture, behaviour and movement of the animal look for blepharospasm, epiphora and photophobiathen check facial symmetry, facial conformation and position of the globe
examine the fundus and the anterior structures of the eye set the focus on the ophthalmoscope to 1D and + 1D to view the fundus position the ophthalmoscope close to the patients eye locate the ophthalmic disc and assess its size, shape and colour examine the retinal blood vessels (NOTE: that the pattern varies with each species)divide the retina into 4 quadrants to allow for systematic examination of the fundus increase the dioptre strength as you focus up through the vitreous to examine the lens +10D then for the anterior segment +20 D
What does the bulbar conjunctiva line?
put your hand under the animals chin and stand at an arms length set the ophthalmoscope focus to +1D to +2Dshine a light directly into the pupil and look for the shiny reflection of the tapetum lucidum note an opacity that you see as this is an abnormality if there is a lesion larger than the pupil no tapetal reflection will be seen
adnexa of the eye eyelids conjunctive nictating membrane retropulse the globes pupil size and symmetry assess menace response assess corneal light reflex palpebral reflex
touch the medial canthus of the eye with a finger or a Q tip and then the animal should blink
cat because the optic disc is in the tapetal region and there are less retinal blood vessels than a dog
use a pen torch to examine the eye. You examine these 5 areas of the eye: adnexacorneaanterior chamber iris lens pupillary light responsedazzle response
where the eyelid becomes slack and is no longer in contact with the eye
observe the movement, behaviour and posture of the animal and then assess the facial conformation, facial symmetry and position of the globe make sure the pupils are the same size protrude the 3rd eyelid check the eyelids check the conjunctiva
True or false: One mechanism of angle closure glaucoma is an increased resistance toaqueous flow through the pupil. This causes the iris to bow forwards andblock the drainage angle.
What are the correction methods for hypermetropia/hyperopia?
eyes moving erratically in all directions
3. A patient presents to casualty with a painful red eye and a cloudy cornea. The casualty officer suspects he has acute glaucoma.a He should arrange for him to be seen in the eye clinic in a week.b The diagnosis would be further confirmed by finding a dilated pupil.c Treatment is initially with intravenous acetazolamide and pilocarpine eyedrops.d A laser iridotomy should be performed.e The condition may be caused by a block to the flow of aqueous through thepupil.
Normal fluctuation = __________ mmHg; if higher suspect GLAUCOMA