A contact lens is a lens placed on the cornea of the eye.
Importance of buffers in contact lens products:
Buffers: They aim to keep the pH of the solutions at values between 6.6 and 7.8 in order to maintain the lens parameters and the effectiveness of the solutions. They are made by the combination of an acid and its sodium salt (phosphate and acetate for example). Borate and citrate buffers are used.
Importance of isotonicity in contact lens products:
The solution composed by isotonic saline solution.
Isotonia is expressed by osmolarity or cryoscopic lowering
- 0.236 to 0.446 mOsmoles / l (increases during the day)
- If the osmolarity of the mixture is different from that of the tears, it causes discomfort and irritation
• Increased tear secretion
• Increase the blink frequency
- If hypotonia, entry of water to the epithelial cells, if hypertonia: inverse
- Osmolarity restored 1 or 2 minutes after instillation
Photosynthesis is how plants eat by turning sunlight to food and without food we wouldnt have good air or plants as food and not just us other animals relies on plants and those animals will die and the food chain will be all messed up hope this helps
Are small eyes Dominant or Recessive?
Answer: C. there is more silicon than calcium at the surface of the earth
Explanation:
The codes to be reported in the given case are 94640, 94640 - 76, J7609 * 2, J44.1.
In the CPT index, when one looks for airway obstruction / Inhalation treatment / Non-pressured or pressured, then one is directed to 94640. Inhalation treatment was instructed therapeutically in treating the acute airway obstruction. Two treatments were given, so code 94640 is reported twice.
Under code 94640, there is a parenthetical instructing given to use modifier 76, in case if more than one inhalation treatment is done on a similar date. As the treatment is done urgently, that is, in the office, the physician uses albuterol, in the given case, two doses of albuterol is given, so J7609 is reported twice per dose. The diagnosis code for exacerbation is J44.1.
