The Correlative Factors Of Affecting Visual Acuity Recovery After Scleral Buckling Surgery

Object:To observe the correlative factors of affecting visual acuity recovery after scleral buckling surgery.Methods:The clinical datum of 91 eyes of 91 patients'who underwent scleral buckling surgery by the same surgeon in Department of ocular fundus one of the Second Hospital of JiLin University were retrospectively studied from Mar.2009 to Dec.2010. The correlative factors of affecting visual acuity recovery were analyzed by Chi-square test.Results:(1).Among the 91 patients,16 were below 20 years old,44 were 20-40 years old,19 were 40-60 years old,12 were 60 years old or above. (2).On main complaints,51 eyes were visual acuity decrease,36 eyes visual field defect,16 eyes muscae volitantes,13 eyes metamorphopsy,8 eyes photopsia. (3).On preoperative visual acuity,3 eyes had light perception,32 eyes CF/HM,10 eyes 0.02-0.1,24eyes 0.1-0.3,22 eyes≥0.3. (4). About preoperative refractive status,22 eyes were emmetropia,60 eyes were myopia, including 6 eyes low myopia,21 eyes medium myopia,33 eyes high myopia,9 eyes hyperopia. (5).The time of retinal detachment of 14 eyes were less than 1 week,40 eyes 1W-1M,23 eyes 1M-3M,7 eyes 3M-6M,7 eyes≥6M. (6). The extent of retinal detachment of 19 eyes were one quadrant,44 eyes two quadrants,21 eyes three quadrants,7 eyes four quadrants;macular area of 32 eyes were involved. (7).7 eyes in 91 eyes had no PVR, and 84 eyes had different degree PVR, including grade A 20 eyes, grade B 42 eyes, grade C 22 eyes. (8). On the 5th postoperative day,40 eyes'visual acuity improved,30 eyes unchanged,21 eyes decreased.3 months after operation,71 eyes'visual acuity improved,11 eyes unchanged,9 eyes decreased. (9).We found by Chi-square test that different age groups, different time of retinal detachment, different extent of retinal detachment, macular area involved or not, and different PVR grade would significantly (P<0.05) affect the postoperative visual acuity recovery. However, there was no significant affect in different preoperative refractive status (P>0.05)Conclusions:(1) RRD occurred more in young and middle-aged people; The improvement rate of the postoperative visual acuity in older groups was better than younger groups. (2) Patients went to our hospital with the most common complaints about visual acuity decrease as well as visual field defects. (3) The postoperative visual acuity recovery in different refractive status before surgery had no significant differences. (4) The longer of retinal detachment, the worse of postoperative visual acuity recovery. (5) The larger of the extent of retinal detachment, the poorer of the postoperative visual acuity recovery. (6) The improvement rate of the postoperative visual acuity of the patients whose macular area were involved was better than those who were not on the 5th postoperative day and the 3 postoperative months, but their postoperative visual acuity was poor. (7) The worse of PVR degree, the poorer of the postoperative visual acuity recovery.