Crystal-like features of the endothelium were noted by Kraupa in 1920, who suggested that the epithelial changes were dependent on the endothelium. Using a slit lamp, Vogt described the excrescences associated with FCD as drop-like in appearance in 1921.uchsâ corneal endothelial dystrophy (FCED) is a degenerative disease of the corneal endothelium with accumulation of focal outgrowths called guttae (drops) and thickening of Descemetâs membrane, leading to corneal edema and loss of vision.
Tropical fish are those that require heated water, generally in the range of 75-80Â°F (24-27Â°C). Because many homes are not kept in that temperature range day and night, these fish require a heated aquarium.old water fish do better in temperatures well below that, some of them enjoy water well below 70Â°F, which is not suitable for any tropical fish. Ultimately the best temperature will depend on the species of fish in the aquarium.
In case of lap swimming, the appropriate temperature in cold regions is 80-82Â° F (to avoid overheating). In warmer regions, the temperature of outdoor swimming pools is maintained at around 75Â° F for lap swimming.For regular swimmers, 80-84Â° F is appropriate. The temperature of the swimming pool water is not fixed, and varies according to factors like wind, surrounding temperature, etc.ater at 78Â° F is ideal for competitive swimming as the cold water promotes heavier breathing and faster heartbeat in order to keep warm. Even for the most adventurous swimmers, 65Â° F is unbearably cold. On the other hand, for regular swimming an average swimming pool temperature of 80-84Â° F is most suited.