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Long-term contact lens use can lead to alterations in corneal thickness, stromal thickness, curvature, corneal sensitivity, cell density, and epithelial oxygen uptake, etc. Other changes may include the formation of epithelial vacuoles and microcysts (containing cellular debris) as well as the emergence of polymegethism in the corneal endothelium.
Image credits: Spence10873 #10. One time I brought soda to a potluck-type party. On the way to the party, the bag ripped and the two soda bottles fell and rolled all the way down the hill with me ...
Computer vision syndrome. Computer vision syndrome ( CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Scleral tattooing is the practice of tattooing the sclera, or white part, of the human eye. Rather than being injected into the tissue, the dye is injected between two layers of the eye, then gradually spreads. The process remains uncommon due to professionals' discomfort performing the procedure [ 1] and is illegal in the American states ...
Menopause is a nearly universal experience for women who live to middle age. In the United States, an estimated 1.3 million women enter menopause every year. Around 90% of women experience ...
The best way to prevent headaches behind your eyes is to narrow down what's causing them, for which you'll need a doctor's help. If your vision is to blame, wearing corrective lenses and having ...
Nocturnal emissions can start as early as age nine [2] and are most common during adolescence and early young adult years, but they may happen any time after puberty. It is possible for men to wake up during a wet dream or simply to sleep through it, but for women, some researchers have added the requirement that she should also awaken during ...
List of best-selling music artists. The following list of best-selling music artists includes musical artists from the 20th century to the present with claims of 75 million or more record sales worldwide. The sales figures are calculated based on the formula detailed below. The tables are listed with each artist's claimed sales figure (s) and ...