To Next PageTo Next Page
Need help?Do you have a question about the Welch Allyn 18200 and is the answer not in the manual?
General| Model | 18200 |
|---|---|
| Brand | Welch Allyn |
| Category | Medical Equipment |
| Light Source | Halogen |
| Power Source | Rechargeable Battery |
| Includes | Ophthalmoscope |
Explains how sleeve adjustment affects focus and rotation for astigmatism axis.
Details initial setup including patient positioning and streak alignment.
Guides the process of neutralizing refractive errors using lenses and observation of reflex motion.
Describes identifying astigmatism axis using reflex break and width changes.
Explains how to identify and quantify hyperopia based on reflex motion and lens strength.
Details conditions for identifying myopia based on reflex motion and lens strength.
Defines astigmatism and its forms based on differential meridian neutralization.
Discusses careful axis setting for cylinders and the 'straddling' technique for refinement.
Describes using magnetic fixation cards for dynamic retinoscopy and its uses.
Explains spiralling as a method for estimating ametropia without lenses.
Details the function of the crossed linear polarizing filter in reducing glare.
Discusses converting the streak retinoscope to a spot retinoscope.
