Mean ( SD ) spherical equivalent refractions were as follows : zone I , -@ ( @ ) diopters ( D ) in @ eyes that received intravitreal bevacizumab and -@ ( @ ) D in @ eyes that received laser treatment ( P < @ ) ; and zone II posterior , -@ ( @ ) D in @ eyes that received intravitreal bevacizumab and -@ ( @ ) D in @ eyes that received laser treatment ( P < @ ) .