Corneal drawings
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Transcript of Corneal drawings
CORNEAL DRAWINGSCORNEAL DRAWINGS
HistoryHistory
• Schepens (1969): Retinal drawing
• “A simple scheme for documenting corneal disease”
Bron AJ. Br J Ophthalmol 1973, 57:629
• Systematic method of drawing corneal pathologyWaring GO 3rd, Laibson PR. Arch Ophthalmol 1977,95:1540
• Schepens (1969): Retinal drawing
• “A simple scheme for documenting corneal disease”
Bron AJ. Br J Ophthalmol 1973, 57:629
• Systematic method of drawing corneal pathologyWaring GO 3rd, Laibson PR. Arch Ophthalmol 1977,95:1540
Why draw?Why draw?• Standardization of documentation
• Easy follow-up
• Teaching
• Cheaper
• color pencils: erasable
Red,Blue,Green,Yellow,Black,Brown Observation power & S/L skills
• Drawing v/s photo: cost, area of interest
• Standardization of documentation
• Easy follow-up
• Teaching
• Cheaper
• color pencils: erasable
Red,Blue,Green,Yellow,Black,Brown Observation power & S/L skills
• Drawing v/s photo: cost, area of interest
BLACKBLACK
How to draw? Color codesHow to draw? Color codes
• Scar• Degeneration / deposits / guttatae• Sutures• CL (broken line) i.e contact lens• FB i.e foreign body • Tissue adhesive• Corneal nerves / Vogt’s striae• IOL– show only in corneal slit
• Scar• Degeneration / deposits / guttatae• Sutures• CL (broken line) i.e contact lens• FB i.e foreign body • Tissue adhesive• Corneal nerves / Vogt’s striae• IOL– show only in corneal slit
BLUEBLUE
• Epithelial edema
• Epithelial bullae
• Stromal edema
• DM(descemet membrane) folds
• Epithelial edema
• Epithelial bullae
• Stromal edema
• DM(descemet membrane) folds
How to draw? Color codesHow to draw? Color codes
YELLOWYELLOW
• Infiltrate
• Hypopyon
• KPs
• Lens (cataract)
• Infiltrate
• Hypopyon
• KPs
• Lens (cataract)
How to draw? Color codesHow to draw? Color codes
GREENGREEN
• Epithelial defect
• Fluorescein stain
• SPKs
• Filaments
• Vitreous
• Epithelial defect
• Fluorescein stain
• SPKs
• Filaments
• Vitreous
How to draw? Color codesHow to draw? Color codes
REDRED
• Blood vessels
Superficial
Deep
Ghost
• Hyphema
• Filaments
• Rose bengal
• Blood vessels
Superficial
Deep
Ghost
• Hyphema
• Filaments
• Rose bengal
How to draw? Color codesHow to draw? Color codes
BROWNBROWN
• Pigments
(Iron lines, epi. melanosis, Kruckenberg’sspindle )
• Iris
• Pupil
• PAS i.e peripheral anterior synaechia
• Pigments
(Iron lines, epi. melanosis, Kruckenberg’sspindle )
• Iris
• Pupil
• PAS i.e peripheral anterior synaechia
How to draw? Color codesHow to draw? Color codes
Frontal view
Slit view
Vital stains
Frontal view
Slit view
Vital stains
How to draw? How to draw?
• Circle (35 mm?)
• Pupil
• Outline opacities: “Sclerotic scatter”
• Scar v/s infiltrate v/s edema:
Scar: Grey-white, reflectance, ↓ thickness, “Zebra pattern”
Infiltrate: Yellowish, diffuse slit, cellular
Edema: Ground glass, thickness of slit
• Circle (35 mm?)
• Pupil
• Outline opacities: “Sclerotic scatter”
• Scar v/s infiltrate v/s edema:
Scar: Grey-white, reflectance, ↓ thickness, “Zebra pattern”
Infiltrate: Yellowish, diffuse slit, cellular
Edema: Ground glass, thickness of slit
How to draw? How to draw?
• Add vessels, pigments, folds etc.
• Fine details: Go quadrant wise
• Sutures
• BCL, tissue adhesive
• Draw separately lens & AV (If needed)
• No details other then on the cornea:NO hypopyon/hyphema, AC exudates, FB in AC
• Add vessels, pigments, folds etc.
• Fine details: Go quadrant wise
• Sutures
• BCL, tissue adhesive
• Draw separately lens & AV (If needed)
• No details other then on the cornea:NO hypopyon/hyphema, AC exudates, FB in AC
How to draw? How to draw?
• Depict the site of slit on the frontal view
• Dotted posterior line: post surface not visible
• Stromal thickness: bow behind
• Area of thinning: mention %
• Descemetocele
• AC depth and lesions in AC
• Lens, vitreous, IOL
• Depict the site of slit on the frontal view
• Dotted posterior line: post surface not visible
• Stromal thickness: bow behind
• Area of thinning: mention %
• Descemetocele
• AC depth and lesions in AC
• Lens, vitreous, IOL
How to draw? How to draw?
• Last to be done
• SPKs: “Remember, numbers are imp.”
• “Separate diagram if needed”
• Last to be done
• SPKs: “Remember, numbers are imp.”
• “Separate diagram if needed”
How to draw? How to draw?
• Slit lamp:
• Slit height
• Graticule
• Coaxial illumination, narrow slit
• “Mention shape of lesion”
• Mention landmark of measurement
• Ulcer: max. diameter, mark it with arrows
• Slit lamp:
• Slit height
• Graticule
• Coaxial illumination, narrow slit
• “Mention shape of lesion”
• Mention landmark of measurement
• Ulcer: max. diameter, mark it with arrows
How to draw? How to draw?
Important pearlImportant pearl
FOLLOW THE CLOCK HOUR RULE FOR
PERFECT DRAWING
FOLLOW THE CLOCK HOUR RULE FOR
PERFECT DRAWING
Happy Drawing!!Happy Drawing!!