Arcus Senilis does not create any type of problem with vision. Corneal arcus is not considered much of a problem in the older population; however, in patients 40 and younger there is a chance the patient has elevated blood lipid levels. When found in a younger patient the condition is often called arcus juvenilis. Cause of Corneal Arcus. Corneal arcus (arcus senilis) is common in older patients as a fairly common age-related change and as previously stated is often then called arcus senilis. Many people develop the condition if they live long enough. Corneal arcus has been somewhat controversial over the years regarding its link to cardiovascular disease due to high lipid/cholesterol levels.
Report Abuse. Mixing different blends or different brands of any oil is definitely NOT a good idea, especially when it deals with marine engines (2 or 4 stroke), vehicle transmissions, gearboxes, lower units and I/O sterndrives.e was asking about TC-W3 mixing with TC-W3 (plus) oil. Before the marketing of the plus oil, The factory recommended using the premium oil. When they had developed the synthetic enough to market, they added it to the line, as a substitute. You can use either. The question then becomes can you mix the two.
There are also semi-synthetic oils, which are a blend of synthetic oils and conventional mineral oils. Semi-synthetic oils are also sometimes called blends. Both types of engine oil are made from crude oil that comes from the ground.The difference is that synthetic motor oils are made from more advanced refining processes and are of a higher purity and quality than conventional mineral oils or semi-synthetic oils.he performance of synthetic oils, and in particular Mobil 1â¢, is more robust, especially in terms of low temperature pumpability and high temperature stability and protection against deposits. These attributes translate directly into less engine wear, increased fuel economy and longer engine life.