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A 55-year-old member asked:

eagle eyes are sharp, why no transplant of corneal for human?

2 doctor answers4 doctors weighed in
Dr. Ralph Morgan Lewis
Family Medicine 38 years experience
More than cornea: Birds have the largest eyes relative to their size in the animal kingdom. Eagles have two maculas per eye. One set works for depth perception & the other set points off to the side. The result is extremely sharp vision across a panoramic view, not just centrally like us. Their ciliary muscles can change the shape of the lens rapidly and to a greater extent than mammals'.
Dr. Richard Bensinger
Ophthalmology 52 years experience
Raptor eyes: Not quite. Raptors have two foveas connected by a visual streak. Their eyes are so large they cannot move. Fovea #1 is for far vision (seeing prey), and as they dive, the image goes down the visual streak until imaged on fovea #2 at the level of the talons. This allows them to catch their prey. Focusing has little to do with it.

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A 41-year-old member asked:

Could a blind regain sight through an eye transplant?

1 doctor answer2 doctors weighed in
Dr. Glenn Pomerance
Ophthalmology 47 years experience
Unfortunately not!: Although various parts of the eye can be replaced by human transplantation or implants (cornea and lens for instance), eye transplantation is not yet possible.
A 30-year-old member asked:

What might cause early morning eye problems?

1 doctor answer3 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Eye drops: The most common early morning eye problem is due to overnight dryness. I am assuming that your vision clears quickly and you are comfortable most of the day and evening. If so, you can put a gel drop like theragel into your eyes at bedtime and this will coat and protect the eye and help in the morning. If the vision is bad or there is redness/pain, see your ophthalmologist.
A 29-year-old member asked:

What complications are there with liver transplantation?

2 doctor answers3 doctors weighed in
Dr. Abdullah Mubarak
Hepatology 28 years experience
Varies: Most patients thrive and do well after liver transplant. However, surgical complications, recurrence of the disease in the new liver (depends on reason for transplant), rejection of the liver- which generally can be treated easily by medications, anti rejection medication related side effects and infections etc. Although these complications occur majority of patients have a better quality of life.
A 48-year-old member asked:

After having a hand transplant does the new hand retain it's fingerprints?

1 doctor answer5 doctors weighed in
Dr. Ralph Layman
Transplant Surgery 20 years experience
Yes: Just as it retains its bones and blood vessels the donor skin remains. Therefore the hand will retain the same fingerprints.
A 46-year-old member asked:

What to do to improve my eye sight?

3 doctor answers4 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Regular eye exams: Your vision is a function of your inheritance, circumstances of fetal development and birth, and exposure to visual stimuli, trauma and disease. You cannot help your inheritance or development, but get regular eye exams, eat a balanced diet, minimize uv light exposure and protect your eyes in hazardous situations.

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Last updated Dec 20, 2012

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