Macular
holes often begin gradually and affect central vision depending on the severity
and extent of the problem. Partial holes only affect part of the macular
layers, causing wavy, distorted, blurred vision. Patients with full-thickness
macular holes experience a complete loss of central vision.
Signs and Symptoms
The
severity of the symptoms is dependent on whether the hole is partial or
full-thickness. Common symptoms are blurred central vision, distorted or
"wavy" vision, gray area in central vision and blind spot at center.
Detection and Diagnosis
Visual
acuity testing, Amsler grid, and ophthalmoscopy are all performed to evaluate
the macula's health and function. The retina doctor may also order photographs
of the macula prior to performing surgery to repair the hole.
Treatment
Some
macular holes seal spontaneously and require no treatment. In many cases,
surgery is necessary to close the hole and restore useful vision.
Macular holes are repaired with surgery. During the operation, the surgeon first gently removes the vitreous gel with a procedure called vitrectomy. This eliminates any traction on the macula. A gas bubble is injected in the eye to place gentle pressure on the macula and help the hole to seal. In many cases, patients enjoy functional vision after the bubble has dissipated and the eye has healed.