Treatment of Macular hole

Friends,

I have been operated  for retinal detachment before two years on left eye. After  the successful surgery (scleral buckling technique) I  could get back, 60% of my  vision with  maximum distortion is in the center  vision. Now recently I  have been diagnosed with a hole in macula. The hole is  in the same eye i.e.  the left.

Doctors here recommend another  surgery "Vitrectomy"  to close the macular hole. I am reluctant to go for one more surgery that may later on be followed by a cataract surgery too.

Is there any dependable  treatment one  you can offer, that can avert the surgery,  close the macular hole and restrict the vision loss, if not improved.

I  also need advise on  the following points

1. What worst I should expect, if I do not go for surgery ?
2. Is there any possibility of developing macular again in the same eye after the surgery, due to future degeneration
3. Can the retinal detachment take place again in the same eye after the surgery ?
4. How successful is the "Victrectomy" for the the eye that is earlier operated for retinal detachment ?
5. What is possibility of getting a macular hole in the right eye, at later date ?  All the web site indicate it as low as 10%.

Regards

 Ram