corneal drawings

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CORNEAL DRAWINGS

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Page 1: Corneal drawings

CORNEAL DRAWINGSCORNEAL DRAWINGS

Page 2: Corneal 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

Page 3: Corneal drawings

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

Page 4: Corneal drawings

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

Page 5: Corneal drawings

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

Page 6: Corneal drawings

YELLOWYELLOW

• Infiltrate

• Hypopyon

• KPs

• Lens (cataract)

• Infiltrate

• Hypopyon

• KPs

• Lens (cataract)

How to draw? Color codesHow to draw? Color codes

Page 7: Corneal drawings

GREENGREEN

• Epithelial defect

• Fluorescein stain

• SPKs

• Filaments

• Vitreous

• Epithelial defect

• Fluorescein stain

• SPKs

• Filaments

• Vitreous

How to draw? Color codesHow to draw? Color codes

Page 8: Corneal drawings

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

Page 9: Corneal drawings

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

Page 10: Corneal drawings

Frontal view

Slit view

Vital stains

Frontal view

Slit view

Vital stains

How to draw? How to draw?

Page 11: Corneal drawings

• 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?

Page 12: Corneal drawings

• 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?

Page 13: Corneal drawings

• 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?

Page 14: Corneal drawings

• 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?

Page 15: Corneal drawings

• 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?

Page 16: Corneal drawings

Important pearlImportant pearl

FOLLOW THE CLOCK HOUR RULE FOR

PERFECT DRAWING

FOLLOW THE CLOCK HOUR RULE FOR

PERFECT DRAWING

Page 17: Corneal drawings
Page 18: Corneal drawings

Happy Drawing!!Happy Drawing!!