My mother is highly diabetic and is not able to see very clearly. Could it be the onset of glaucoma?
Cataract surgery is pain free, and one of the most successful of all operations as the parts of the surgery are extremely well controlled and predictable. Diabetics commonly develop cataracts in older age and there is no additional risk to surgery in this group with well controlled diabetes. Dense cataracts prevent viewing of the back of the eye, and cataract removal in diabetics is sometimes necessary when there are diabetic changes in the back termed "diabetic retinopathy". There is a small increased risk if the cataract removal is delayed and becomes advanced, so do not put this off.