An ophthalmoscope.
A camera or a telescope (:
The human eye. I was about to say "the optical telescope", but even that wouldn't work without the human eye.
Iridologists examine sections of the iris of the eye to determine information about a patient's health in different parts of the body. Iridologists typically use a flashlight and magnifying glass, cameras, or slit-lamp microscopes to examine the iris of the eye. They correspond the information gathered there with an iris chart, explaining what different patterns, colors and locations correspond to what part of the body.
Simply just a high tech telescope to see it in HD but you can see it with your naked eye in the night sky.
they are visually attractive
An ophthalmoscope.
-scope
The medical term is "ophthalmoscope." It is a tool used by healthcare professionals to examine the interior structures of the eye, such as the retina and optic nerve.
An otoscope is the instrument used to visually examine the tympanic membrane.Otoscope
otoscope
laparoscopy
otoscope
An opthalmoscope is a lighted instrument that allows the clinician to examine the interior structures of the eye, including the retina.
During a sigmoidoscopy a thin, flexible instrument is used to visually examine the intestinal lining and obtain small tissue specimens
to examine visually
Endoscopeendoscope, colonoscope, cystoscope, laparoscope or arthroscope.
bronchoscopeA bronchoscope is used to inspect the interior of the bronchi.