Office tests

Test for double vision with each eye occluded. If diplopia persists it is uniocular. If, however, double vision disappears when either eye is covered, there is a defect of one of the muscles moving the eyeball. Determine whether diplopia occurs in any particular direction of gaze. It is most marked when moved in the direction of action of the weak muscle. Ask patient to follow your finger, red pin or penlight with both eyes and move it in an H pattern.

• 3rd nerve—eye turned out: divergent squint

• 6th nerve—failure to abduct: convergent squint

See Figure 29.1 .

superior rectus inferior rectus

Li ferioi oöhque superior rectus

inferior rectus

SLperlor oblique

Fig. 29.1 Direction of movement of the right eye indicating the responsible extra-ocular muscles and cranial nerves (3 = oculomotor, 4 = trochlear, 6 = abducens)

Was this article helpful?

0 0
Constipation Prescription

Constipation Prescription

Did you ever think feeling angry and irritable could be a symptom of constipation? A horrible fullness and pressing sharp pains against the bladders can’t help but affect your mood. Sometimes you just want everyone to leave you alone and sleep to escape the pain. It is virtually impossible to be constipated and keep a sunny disposition. Follow the steps in this guide to alleviate constipation and lead a happier healthy life.

Get My Free Ebook

Post a comment