Corneal astigmatic changes after pars plana vitrectomy.
The authors prospectively studied 67 eyes of 64 patients undergoing pars plana vitrectomy without a scleral buckle to determine the effect of surgery on postoperative corneal curvature. An average of 1 D of against-the-rule astigmatism was induced in the immediate postoperative period. This astigmatic change spontaneously regressed to less than 0.15 D by the 7th postoperative week. Pars plana vitrectomy does not induce clinically significant corneal astigmatism.
Wilmer Ophthalmological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland.
H D
HD
Jampel
J T
JT
Thompson
M
M
Nunez
R G
RG
Michels
D001251:Astigmatism / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D011379:Prognosis; D011446:Prospective Studies; D014792:Visual Acuity; D014821:Vitrectomy / Q000009:adverse effects* / Q000379:methods