Hi,
The term ‘perfect eyesight’ can be somewhat misleading as it could mean different things.
When we check eyesight (visual acuity), we are asked to read a chart with smaller and smaller letters. One of the line of small letters near the bottom is called the 6/6 line, and if a person can read the letters on that line, some people would call that ‘perfect eyesight’. But being able to read or make out the letters does not necessarily mean that those letters are perfectly clear. Hence, there can be 6/6 vision that is more clear or more blur than another person’s 6/6 vision.
There can be many reasons for blurrer vision. Things like dry eyes, post epiLASIK/PRK haze, residual spectacle power, or so called ‘higher order aberrations’ which are surface irregularities not correctable with regular glasses.
But generally, if letters on the 6/6 line can be read, any factor causing blurring is likely to be mild.
If you are still concerned about your vision, you should discuss this further with your doctor or consider getting a second opinion. Only with a thorough check and relevant tests can a doctor tell if there is any residual problem and how mild or severe it is.