Describe a Retinal Exam for Cataracts

Cataracts cause vision to blur, though not all vision changes are due to cataracts. The retina plays a significant role in vision, and must also be evaluated when monitoring vision changes.

Natural Lens

• The natural lens of the eye sits just behind the pupil. Cataracts form when this lens turns yellow and foggy with age. During an eye exam, the doctor determines the amount of change in the lens.

Dilation

• The eye doctor can see cataracts without dilation, though the overall health of the eye depends heavily on the retina. The doctor or his technician will use eye drops to dilate the pupils, allowing a better look at the retina.

Retina

• In patients with diabetes, high blood pressure or other health conditions, the retina may show changes that may eventually affect vision. If the doctor recommends cataract surgery, he must evaluate the retina to determine if cataract surgery is the right option.

Macula

• The macula, an area on the retina, is responsible for clear central vision. If changes in the macular are present, such as macular degeneration, cataract surgery could cause further progression.

Surgical Options

• Based on the findings of the retinal exam, the eye doctor will determine if cataract surgery will improve vision. Cataract surgery may speed up the progression of certain retinal conditions, and if changes are present, have the doctor explain the effects of surgery on these conditions.