Laser　thermokeratoplasty　(LTK)　is　the　ophthalmologic　procedure　used　for　the　correction　of　hyperopia.　In　this　paper,　the　grid　compartmentalization,　loading　and　restriction　of　cornea　model　were　reported　based　on　the　principle　and　process　of　LTK.　The　corneal　deformation　and　the　change　of　curvature　radius　were　analyzed　with　different　operation　parameters.　The　effects　of　different　parameters　on　the　corneal　curvature　were　obtained　and　consequently　the　effects　on　the　diopter　correction　were　determined.　it　was　found　that　eye　pressure　only　had　a　small　effect　on　the　changes　of　cornea　diopter.　Under　the　same　eye　pressure,　the　greater　the　diameter　of　operation　area　changed,　the　greater　the　corneal　curvature　changed　with　a　more　obvious　operation　efficacy.　To　obtain　a　significant　operation　efficacy,　the　diameter　of　operation　area　should　not　be　less　than　4.5　mm.