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What are the findings of Macular Photocoagulation Study (MPS) with regard to treatment of choroidal neovascularization (CNV)?

Answer
The MPS looked at the effect of laser on CNV. The results showed that:
Extrafoveal: 45% significant visual loss (laser)  vs 64% (no laser ) at 5 years
Juxtafoveal: 47% significant visual loss (laser) vs 58% (no laser) at 3 years
Subfoveal:   20% significant visual loss (laser) vs 37% (no laser) at 2 years
The conclusions of the study are:
Laser is beneficial in all types of classic SRNVM
Significant visual loss occurs in both treated and untreated cases.
Risk of immediate decrease in visual acuity following laser treatment.

 

What are the findings of MPS with regard to recurrent CNV following treatment?

Answer
In the MPS:
The rate of persistent or recurrent CNV 1 year after laser treatment
is 46% for juxtafoveal or extrafoveal CNV and 31% for subfoveal CNV.

 

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