Today's Scleral Lens. Scleral lenses are now universalââused not only for irregular cornea patients, but also to treat high refractive errors and presbyopia. Goal Statement: This article will present an update on today's scleral lenses and outline their ability to treat patients with irregular cornea, high refractive errors and presbyopia.
Put the tenderloins on a rack in a roasting pan, and roast them in a 450Â°F oven. After about 15 minutes, check the internal temperature with a probe thermometer. For a tenderloin that's medium-rare, look for an internal temperature of 120Â°F. For medium, the internal temperature should be 125Â°F.When the tenderloin is cooked the way you like it, let it rest at room temperature for 15 minutes before slicing. This will let the juices redistribute so the meat is juicy all over.or medium, the internal temperature should be 125Â°F. When the tenderloin is cooked the way you like it, let it rest at room temperature for 15 minutes before slicing. This will let the juices redistribute so the meat is juicy all over.
Photo Credit Kim Stemmer/Demand Media. Roast the tenderloin until an instant-read meat thermometer indicates an internal temperature of 135 degrees for medium rare or 145 degrees for medium. A two to three pound tenderloin will take 30 to 40 minutes to reach medium rare and 45 to 50 minutes to reach medium.A four to five pound beef tenderloin will take 50 to 60 minutes to reach medium rare and 60 to 70 minutes to reach medium.emove the beef tenderloin from the refrigerator 60 to 75 minutes before you roast it. The roast cooks more quickly and evenly when first warmed to room temperature.