Brian J Jacob, MD

We provide our patients with superior care and advanced treatment to assure optimal eye health. Our team of board-certified physicians at NSGC are the only glaucoma specialists in Lake and McHenry counties, and bring vast knowledge to the treatment and management all types of eye diseases.

With the latest technologies to make the most accurate diagnosis and treatment, we assure that patients have a clear explanation of your diagnosis and remedies so you can make a fully informed decision with your doctor's guidance.At NSGC, we offer the most current and cutting-edge procedures to assure the eye health of all our patients.

The amount and pattern of cloudiness within the lens can vary. If the cloudiness is not near the center of the lens, you may not be aware that a cataract is present. A thorough eye examination by your ophthalmologist can detect the presence and extent of a cataract, as well as any other conditions that may be causing blurred vision or discomfort.

If you have diabetes mellitus, your body does not use and store sugar properly. High blood-sugar levels can damage blood vessels in the retina, the nerve layer at the back of the eye that senses light and helps to send images to the brain. The damage to retinal vessels is referred to as diabetic retinopathy.

Tears are produced by two different methods. One method produces tears at a slow, steady rate and is responsible for normal eye lubrication. The other method produces large quantities of tears in response to the eye irritation or emotions. Tears that lubricate are constantly produced by a healthy eye.

Floaters are actually tiny clumps of gel or cells inside the vitreous, the clear jelly-like fluid that fills the inside of your eye. While these objects look like they are in front of your eye, they are actually floating inside. What you see are the shadows they cast on the retina, the nerve layer at the back of the eye that senses light and allows you to see.