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  2. Magic eye tube - Wikipedia

    en.wikipedia.org/wiki/Magic_eye_tube

    The magic eye (also called a cat's eye, or tuning eye in North America) is a specific type of such a tube with a circular display similar to the EM34 illustrated. Its first broad application was as a tuning indicator in radio receivers , to give an indication of the relative strength of the received radio signal, to show when a radio station ...

  3. List of instruments used in otorhinolaryngology, head and ...

    en.wikipedia.org/wiki/List_of_instruments_used...

    hollow tube to see within the respiratory tract without obstructing respiration: Oesophagoscope: hollow tube to see within the oesophagus: Laryngoscope: used in direct laryngoscopy; video link: Jobson Horne's probe with ring curette: to access or clean the external ear: Tuning forks: for various clinical tests of hearing loss; vibration sense test

  4. Canine glaucoma - Wikipedia

    en.wikipedia.org/wiki/Canine_glaucoma

    The least common type of glaucoma in dogs is primary open-angle glaucoma (POAG), although this is the most common type that affects humans. [1] In the Beagle, POAG is an inherited autosomal recessive trait. [2] Secondary glaucomas occur when other eye diseases alter the flow of aqueous humor either into or out of the eye.

  5. What is cherry eye in dogs? A vet explains - AOL

    www.aol.com/cherry-eye-dogs-vet-explains...

    “Cherry eye is a common eye condition in dogs where a gland in the third eyelid pops out and swells up, making it look like a red, swollen ‘cherry’ in the corner of the eye,” says Dr. Hood.

  6. Myopia in animals - Wikipedia

    en.wikipedia.org/wiki/Myopia_in_animals

    Nuclear sclerosis of the crystalline lens was noticed in older dogs. [4] Experiments into newborn macaque monkeys have revealed that surgically fusing the eyelid for one year results in eye deterioration as the eye has not had a chance to grow and develop. [5] Keeping monkeys in the dark for a similar period, however, does not lead to myopia. [5]

  7. Pentagrid converter - Wikipedia

    en.wikipedia.org/wiki/Pentagrid_converter

    The pentagrid converter is a type of radio receiving valve (vacuum tube) with five grids used as the frequency mixer stage of a superheterodyne radio receiver. The pentagrid was part of a line of development of valves that were able to take an incoming RF signal and change its frequency to a fixed intermediate frequency , which was then ...

  8. Sudden acquired retinal degeneration syndrome - Wikipedia

    en.wikipedia.org/wiki/Sudden_acquired_retinal...

    Sudden acquired retinal degeneration syndrome (SARDS) is a disease in dogs causing sudden blindness. It can occur in any breed, but female dogs may be predisposed. [1] Approximately 4000 cases are seen in the United States annually. [2]

  9. List of guide dog schools - Wikipedia

    en.wikipedia.org/wiki/List_of_guide_dog_schools

    Guide dogs are assistance dogs trained to lead blind and visually impaired people around obstacles. In the United States, the name "seeing eye dog" is only used in reference to a guide dog from The Seeing Eye in Morristown, New Jersey, which has trademarked the term. [1] Guide dog schools are accredited by the International Guide Dog Federation.