Diagnostic techniques

Question 1

DIRECT OPHTHALMOSCOPE

Answer 1

A direct ophthalmoscope is a device that produces an unreversed or upright image of around 15 times magnification. The direct ophthalmoscope is a critical tool used to inspect the back portion of the interior eyeball, which is called the fundus. Examination is usually best carried out in a darkened room.

Question 1

INDIRECT OPHALOSCOPE

Answer 1

An indirect ophthalmoscope is a device that produces a reversed or inverted direct images with two to five times magnification. In comparing direct vs indirect ophthalmoscope, the indirect ophthalmoscope delivers a stronger source of light, greater opportunity for stereoscopic inspection of the eyeball interior, and a specifically designed objective lens.

Patients pupil must be fully dilated

Question 2

VAN HERICK TECHNIQUE

Answer 2

The Van Herick technique is an eye examination method used to determine the size of the anterior chamber angle of the eye

Question 3

NON- CONTACT TONOMETRY (NCT)

Answer 3

Non-contact tonometry is one method for testing the eye’s intraocular pressure by determining how resistant your cornea is to indentation

Question 4

SLIT LAMP

Answer 4

a lamp which emits a narrow but intense beam of light, used for examining the interior of the eye.