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Description
Keeler Standard Ophthalmoscope (AA Battery)Standard Ophthalmoscope 2 apertures: Small allows quick entry into small, undilated pupils. Large general examination of the eye through dilated pupil. 1 filter can be used in conjunction with any of the above apertures: Red Free filter filters out red light for easy identification of veins, arteries and nerve fibers. 28 focusing lenses with a range of 25 to +40 diopters, adjustable via easy to reach maywheel. Soft brow rest suitable for use with
Standard Ophthalmoscope
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2 apertures:
- Small - allows quick entry into small, undilated pupils.
- Large - general examination of the eye through dilated pupil.
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1 filter can be used in conjunction with any of the above apertures:
- Red-Free filter - filters out red light for easy identification of veins, arteries and nerve fibers.
- 28 focusing lenses with a range of -25 to +40 diopters, adjustable via easy-to-reach maywheel.
- Soft brow-rest suitable for use with spectacles.
- Renowned high performance Keeler optics with aspherical lens
- Sliding dust cover to keep the lens clean.
aperture selection disc
Switch easily between 2 apertures
Two Apertures
A choice of small or large apertures and a red-free filter.
Maywheel Focus
Easy access on either side of the head to adjust the diopters.
Dust cover
Protect the lens from dust when not in use.
Rheostat Control
Smoothly control the power of illumination.
Replacement bulb
Easy to replace the included bulb.
More information: Using Ophthalmoscopes in Eye Examinations
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Just have to be careful not to take more than one per night or else wake up feeling like have a hangover
Size: 200 Count (Pack of 1)
Definitely works for me. Just have to be careful not to take more than one per night or else wake up feeling like have a hangover. Works great for me but not as well for my stepmother. She has severe insomnia and has been on sleeping medications for years. She tried taking this to go a more natural route but did not even affect her.
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Reviewed in the United States on January 9, 2018
★★★★★ 5
surprised!
I actually didn't realize I had ordered "time released" version. I thought these were just normal melatonin. But now that I've tried these, I love them so much better than the regular version! Helps me sleep better through the night. No taste, love this brand of Source Naturals.
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Reviewed in the United States on October 17, 2025
★★★★★ 5
The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
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Reviewed in the United States on March 13, 2025
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
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Reviewed in the United States on January 10, 2013
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014