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. 2011 Jan 28;25(4):494–501. doi: 10.1038/eye.2010.229

Table 3. Subgroup analysis for questionnaire responses, completed immediately after an IVT injection.

Questions Answer Previous injection(s)
CDVA
Injected agent
Pathology
Lens status
    No previous injection (n=30) Previous injections (n=45) P-value Good CDVA (n=35) Moderate CDVA (n=23) Poor CDVA (n=17) P-value Clear agent (n=69) Suspension (n=6) P-value CNV (n=62) MO (n=13) P-value Phakic (n=33) Pseudophakic (n=41) P-value
Do you see lights? Yes 8 (27%) 12 (27%) 1.0 9 (26%) 5 (23%) 6 (35%) 0.62 19 (28%) 1 (17%) 0.56 17 (27%) 3 (23%) 0.75 7 (21%) 12 (29%) 0.43
                                   
Do you see floaters? Yes 9 (30%) 15 (33%) 0.76 12 (34%) 6 (26%) 6 (35%) 0.76 20 (29%) 4 (67%) 0.06 17 (27%) 7 (54%) 0.06 11 (33%) 13 (32%) 0.88
                                   
Vision now compared with vision before the injection Better 2 (7%) 5 (11%) 0.24 1 (3%) 3 (13%) 3 (8%) 0.24 7 (10%) 0 0.30 6 (10%) 1 (8%) 0.00 2 (6%) 5 (12%) 0.42
  Worse 23 (77%) 26 (58%)   25 (71%) 16 (70%) 23 (64%)   46 (65%) 3 (50%)   45 (73%) 4 (41%)   24 (73%) 24 (59%)  
  Same 5 (16%) 14 (31%)   9 (26%) 4 (17%) 10 (28%)   16 (23%) 3 (50%)   11 (18%) 8 (62%)   7 (21%) 12 (29%)  

Abbreviations: CDVA, corrected distance visual acuity; CNV, choroidal neovascular membrane; IVT, intravitreous; MO, macular edema.

Good CDVA (≤0.3); moderate CDVA (>0.3 and <0.7) and poor CDVA (≥0.7).