Cataract, Howard S. Weiss, MD

1. Four Major Types of
Cataract
Howard S. Weiss, MD

2. Four Major Types of Cataract
Howard S. Weiss, MD, is an experienced
ophthalmologist who has operated on thousands of
patients with a wide range of cataracts. Many
physicians refer patients to Howard S. Weiss, MD,
for his expertise in cataract surgery. He is skilled in
the use of astigmatism-reducing and multifocal lens
implants and in the use of femtosecond-laser
techniques to reduce the need for glasses after
cataract surgery.

3. Four Major Types of Cataract
Cataracts typically form when the tissue of the eye
lens changes due to aging or injury. Cataracts may
form in the center of the lens, on the edges of the
lens, or on the back of the lens.

4. Four Major Types of Cataract
Each form of cataract may pose different problems.
A cataract that affects the center of the lens, also
known as a nuclear cataract, can turn the lens a
dense yellow, or even brown color. This can make it
difficult to decipher different shades of color.
Cataracts that affect the edges of the lens, also
known as cortical cataracts, create streaks on the
outer edge of the lens. The result is glare due to
interference with light moving through the middle of
the lens.

5. Four Major Types of Cataract
Cataracts that affect the back of the lens, also
known as posterior subcapsular cataracts, can
impair vision in bright light and cause glare from
lights at night.

6. Four Major Types of Cataract
Regardless of which form of cataract is present,
surgery to restore vision is considered when a
person notes that existing vision, despite the best
correction available, is inadequate for their needs.