Jornal de Oftalmologia Clínica e Experimental
Acesso livre
ISSN: 2155-9570
ISSN: 2155-9570
Mostafa A Arafa, El Sayed M Eltoukhy, Mahmoud A Kamal, Mohamed M Said
Objective: Dis study aim fi determine di efficacy a anterior an nasal transposition a Inferior Oblique fi manage dissociated vertical deviation an vertically incomitant horizontal strabismus (V pattern).
Method: Dis study was both prospective an uncontrolled; it did include 60 patients weh did suffer fram inferior oblique overaction. Di participants dem did divide inna two groups: Group A did have 30 patients wid vertically incomitant horizontal strabismus while group B did have 30 patients wid dissociated vertical deviation.
Preoperative examination did include: Assessment a vision, ductions an versions inna di six cardinal directions a gaze an severity a IOOA graded fram 0 to +4. Di percentage a dissociated vertical deviation did measure using di prism unda cover test inna primary position.
Follow-up visits did happen inna di following intervals: Afta one week, one month, four months, an six months respectively. Inna each follow-up visit, di measurements a di ductions, versions, an alignment inna primary position did record.
Results: Group A did show no pattern inna 93.3% a di case dem postoperatively while 6.7% a di case dem did develop insignificant V pattern (0.8 ± 2.9 ΔD), wid statistically significant difference between di pre- an post-operative values (pvalue< 0.001). Meanwhile, group B did show a complete resolution a DVD inna 100% a di cases wid preoperative (DVD<15 ΔD) an inna 20% a di cases wid preoperative DVD ≥ 15 ΔD; di res a di cases dem did have residual DVD (3.6 ± 4.1 ΔD).
Conclusion: Anterior-nasal transposition a di Inferior Oblique muscle a one effective procedure fi cases wid severe or recurrent inferior oblique overaction wen ada standard procedures a Inferior Oblique muscle fail. Fi DVD ≥ 15 ΔD, wi recommend a combined anterior-nasal transposition a inferior oblique wid superior rectus recession.