If eyesight is cylinderical like -2.5 or -2.75 than lasik is possible?

That would be for the ophthalmologist to determine. How myopic (short sighted) you are is not the only factor which must be taken into consideration. Many of these stand-alone Lasik type clinics will allow you to come in for a consultation, free of charge to determine if you are a good candidate. I encourage you to do so.