Semiology – Telorism – Ocular

Do NOT guess – MEASURE !

Plot measurement on normative scales

1.  Telorism (C)* (distance/separation of paired structures).
Hypertelorism – Normo … – Hypo …

2. MEASURE Palpebral  Opening  (A – B).
Narrow – Norm – Wide

3. Nasal tip to upper lip vermilion** distance (D).

* Telorism refers to a distance between paired structures.
**Vermilion – lips red mucosa (similar hue to a earth-worm or mercury sulfide known as cinnabar).

There are two additional companion pearls (Clinical Dilemma – “Genetic Counseling”; Function and Structure).