It is a very complicated task to choose the best ophthalmoscope, which meets different demands and find the quality ophthalmic equipment. One of them has appeared in Russia. The main manufacturer of this device is the British company Keeler, producing keeler ophthalmoscopes. It offers the best model of the keeler ophthalmoscopes, which is called Vista Professional. The small electrical lamp of the model Vista Professional is very bright.
The reflection coefficient of the semi-transparent mirrors maintains with the ideal accuracy, so light loss is minimal. This model is very popular in many countries. But Russia has got know of it lately. Many doctors and ophthalmologists in the country have understood that it is of high quality, is easy to use, and is the best image of eye-ground in its true value, convenience, simplicity and reliability.
So, the majority of doctors try to apply them in their practice and diagnosis of different sicknesses. Xenon lamp from this company allows making researches without the dilatation of pupil.
The characteristics of this model of keeler ophthalmoscopes are the following:
-6 apertures - wide spot, middle spot, macula, slot, glaucoma net, target;
-green filter;
-disk with lenses from +29 to -25 dioptres with the step of 1 dioptre;
-additional rapid set of lenses from +20 dioptres to -20 dioptres - pop up the window indicates the size of the chosen lens;
-smooth resistance control illumination on the device handle;
- dust trap which preserves the optics;
-soft rubber support for the doctors who wear glasses.
The aperture with wide angle illuminates the spectrum of fundus and provides the general diagnosis through the mydriatic pupil. The middle aperture makes inspection of fundus through non-mydriatic pupil. Macula is used to survey the central eye-ground. The slot is used for the definition of retinal asperity. The glaucoma net is used to estimate the form of disk of the optic nerve in the result of glaucoma diagnostics.
Fixation cross estimates the degree and direction of the eccentric fixation. The aperture "without red" is applied to survey the blood vessels of retina. The green filter helps to detect the disturbance in the vascular system of eye: small hemorrhage, exudation, pauperization of neural tissue and subtle changes in the yellow spot. The ophthalmoscope is delivered in the plastic case with the reserve lamp.
This model meets strict demands of the doctors.
It is very nice for the application. Even the inexperienced ophthalmologist can use keeler ophthalmoscopes and diagnose different eye sicknesses. The candidate of Medical Sciences T.V. Leontiev also recommends using the ophthalmoscope of the company Keeler, so this equipment was invented for the ordinary directory ophthalmology, for pleoptic diagnosis and treatment.
In the last case Linx net with asterisk allows to define eccentric fixation, and Nutt Auto disk helps to carry out the central occlusion and to stimulate central region of the eye-ground without the breaking the ophthalmologic examination. The other model of this company is Pantoscop.
It was invented 15 years ago and included 15 ophthalmologic methods. The peculiarity of this model is telescopic attachment, which doubles the extension of direct and reverse ophthalmology.