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Video instructions for inserting and removing contact lenses. Contact lenses are typically inserted into the eye by placing them on the pad of the index or middle finger with the concave side upward and then using that finger to place the lens on the eye. Rigid lenses should be placed directly on the cornea.
The Morgan lens can be used in many situations requiring ocular irrigation or the application of medicine to the eye, including cases of chemical eye burns, thermal burns, irritants (e.g., gasoline, detergent), nonembedded foreign bodies, foreign body sensation with no visible foreign body, routine cleansing before eye surgery or eyelid surgery, or for infections.
During the colder months, the chilly, dry air can zap moisture from the eyes, making contact lenses more likely to irritate a person’s vision. During the colder months, the chilly, dry air can ...
Contact lenses: to correct refractive errors of the eye; a little invasive Phoropter: used in refraction testing Tonometers: used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers. Speculum: to keep the eyes open during any operation Universal eye speculum
Scleral lenses are removed using the fingers, or a small lens removal plunger. Lenses are then cleaned and sanitized before reinsertion. Scleral lenses cannot be worn while sleeping and many wearers sanitize their lenses overnight. Unlike regular contact lenses, many sclerals can be stored dry when unused for longer periods of time.
In 1632, Rene Descartes revisited the idea of contact lenses. His idea involved tubes of water that would be stuck into the eyes and held in place with an external support system.
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