In 1853 he devised an ophthalmoscope that was a modification of the device invented by Hermann von Helmholtz ( 1821-1894 ).
22.
When these cataracts are viewed through an ophthalmoscope, or other magnification system, the appearance is similar to white spokes of a wheel.
23.
There he used the newly invented ophthalmoscope ( invented by Hermann von Helmholtz ) to later operate on his own mother's eye.
24.
The interior of the eye is also viewed with an ophthalmoscope to determine if there are any other eye disorders contributing to the blurred vision.
25.
Vision may be tested by examining the visual field, or by examining the retina with an ophthalmoscope, using a process known as funduscopy.
26.
Depending on the position of the tumors, they may be visible during a simple eye exam using an ophthalmoscope to look through the pupil.
27.
In 1851, Helmholtz revolutionized the field of ophthalmology with the invention of the ophthalmoscope; an instrument used to examine the inside of the human eye.
28.
Gullstrand is noted also for his research on astigmatism and for improving the ophthalmoscope and corrective lenses for use after removal of a cataract from the eye.
29.
Recent developments like Scanning Laser Ophthalmoscope can make good quality images though pupils as small as 2 millimeters, so dilating pupils is no longer needed with these devices.
30.
Looking through an ophthalmoscope, Coats determines the maturity of the retina by examining the optic nerve, which is a direct extension of the brain, and other areas.
