Special cake flour with a high starch-to-gluten ratio is made from fine-textured, soft, low-protein wheat. It is strongly bleached, and compared to all-purpose flour, cake flour tends to result in cakes with a lighter, less dense texture.
Most optometrists offer medical treatment for common eye problems (such as dry eyes and eye infections) and certain chronic eye diseases (such as glaucoma). But certain eye disorders require treatment by an ophthalmologist, particularly if surgery or other specialty care is needed.
Gastroenterologists are the most common phyician who performs colonoscopy. Some surgeons also perform them. Gastroenterologists typically do colonoscopies in the community. Family doctors will sometimes do flexible sigmoidoscopy but aren't qualified for full colonoscopy. Colorectal surgeons will also perform colonoscopy.