Pictures Flashcards
What is each layer representative of?
What does this image show?
Aqueous flare, Tyndall Side
What does this image show?
Keratic Precipitates
What type of visualisation does this show?
Indirect
What does this image show?
Cataract
What does this image show?
Nuclear Sclerosis
What does this image show?
Healthy cat fundus
What does this image show?
Large lens with DIabetic cataract
What does this image show? What further tests would help narrow ddx?
- pigment
- white scar (ddx. lipid or calcium)
- inactive corneal lesion (no obvious blood vessels or discharge, eye held open)
- d/t chronic irritation or 1* inflammatory disease
- eg Ddx: dry eye, trichiasis, entropion, LPI (corneal pannus)
- Dxx: STT, cytolgy of corneal surfce? (only useful if lesion active)
What does this image show? What further diagnostics would help narrow ddx?
- Pigment or a sequestrum, this is a cat so probably a sequestrum as cats have little to no pigment in the limbus or conjunctiva and do not normally pigment their cornea the way dogs do, a scar (white), although white can also be lipid or calcium, and vascularization (red)
- active lesion d/t sequestrum/FB
- fluorescin, STT (variable reliability in cats)
What does this image show?
- There is a blood vessel response (red) and this is leading to an area that is pink, this is granulation tissue formation or possibly a eosinophilic keratitis (EK). In this case it is probably not EK as this normally happens in the dorsolateral cornea and this is central. The whitish color could be a scar and the yellowish hue what is left of fluorescein.
- Active lesion (blood vessels seen)
- Distichiasis
What does this image show? Further diagnostics?
- Vascularization (red), there are blood vessels entering the cornea through the dorsal limbus. They can be seen extending from the conjunctiva and episclera (conjunctival vessels have dichotomous branching and episcleral vessels meander a lot but have no branches) and corneal edema (blue)
- Ddx: Ulcerative disease, intraocular disease (eg glaucoma primary or secondary, and uveitis), primary endothelial degeneration
- Dxx: fluorscin, tonometry, transillumination
What does this image show?
Corneal ulcer with fluorescein, stromal abscess, ring of neovascularization, corneal edema and limbal pigment*. There is thickening of the cornea.
- Corneal infiltrate- abscess (white), fluorescein (bright yellow), vascularization and granulation tissue (red/pink), edema (blue) and pigment (black)
• Corneal abscessation does not really involve the development of a pocket of pus per se, but the heavy cellular infiltration of the corneal stroma. This may be infected with bacteria and, rarely (depending on geographic location –cold vs warm climates, and species –dogs vs horses for instance), fungal organisms.
- active lesion, wet eye and inflamed
What does this image show?
Staphylococcal blepharitis
What does this image show?
conjunctival blood vessel hyperaemia
What does htis image show?
Episcleral hyperaemia in a dog
What does this image show?
Episcleral hyperaemia in a cat
What does this image show?
Follicular conjunctivitis of the palpebral side of the TE
What does this image show?
Follicular conjunctivitis of the bulbar side of the TE
What does this image show?
Prolapsed gland of the TE of the OS
What deos this image show?
-
What does this image show?
?? find out
What does this image show?
Hyphema
What does this image show?
^ mucous production
- conjunctival inflammation
What does this image show?
- ulcer (+- descementocoele??)
- corenal oedema
What does this image show?
Staphylococcal blepharitis
What does this image show?
dont know find out??
What does this image show?
Symblepharon
• Adhesions of the conjunctiva onto itself and the cornea
• Kittens affected with “cat fu” (FHV-1, Calicivirus, Bordetella) – Corneal epithelial cell depletion (FHV-1 mediated)
– Advancement of conjunctiva over cornea
– Permanent focal or diffuse scar
• Recurrent FHV-1 later in life
What does this image show?
Pigmentary keratitis
Review from CAL homework
• Pigment and chronic corneal irritation (KCS)
• Specific problem of pugs with entropion
– Lower medial eyelid and medial canthus
– Constant rubbing of hairs of medial with eye movement
• Can be blinding in <2yrs
What does this image show?
Persistent pupillary membranes (PPMs)
• Failure of regression of fetal blood vessels in the AC
- Congenital problem
- Strands arise at the collarette
- Strands span – Iris to iris
– Iris to cornea = a leukoma results (may be slowly progressive)
– Iris to lens = a cataract results (usually progressive)
What does this image show?
Uveitis -> hypopion
What does this image show?
Extensive posterior synechia secondary to lens induced uveitis in a dog with a diabetic cataract
What does this image show?
Indirect opthalmoscopy - Hypertenstion in this cat: Dilated pupil OD. OS, which also has a dilated pupil, has a bullous retinal detachment on indirect ophthalmoscopy
What does this image show?
- Systemic hypertension in cats
– Hemorrhage in the AC (aka hyphema) and in the vitreous – Retinal detachment (+systemic disease) - FIP/FeLV/FIV/Toxo (protein in AC, +/- lesions in the fundus +/- systemic disease)
(not sure which is which??)
What does this image show?
Cripto in a cat with secondary retinal detachment -
Fungal infection
– affects the whole uvea, especially the fundus – May affect the respiratory tract too
What does this image show?
VKH= Vogdt-Koyanada-Harada. Refers to an immune mediated disease against precursors of melanin described in people. Strong inflammation affects multiple areas where there is pigment: the eye, the skin, etc
What does this image show?
Congenital cataract in the fetal nucleus of a cat. The pupil of this patient has undergone pharmacologic dilation for the examination.
What does this image show?
PPMs
(most progress,
mature cataract, and lens induced uveitis)
PPMs arise from the Iris Colarette, an imaginary circle between the iridal part and the ciliary parts of the iris
