Table 1 Patient demographics and pre-operative characteristics of patients with giant retina tear-related rhegmatogenous retinal detachment, divided into two groups – 1991 to 2005 and 2006 to 2015.

From: 25-years Trends and Risk factors related to Surgical Outcomes of Giant Retinal Tear-Rhegmatogenous Retinal Detachments

Characteristics

Group A 1991 to 2015 (n = 127)

Group B - 1991 to 2005 (n = 78)

Group C - 2006 to 2015 (n = 49)

Patient demographics

  Age, mean (SD)

42.5 (13.7)

41.65 (12.5)

43.9 (15.5)

Gender, number (%)

  Male

111 (87.4%)

70 (89.7%)

41 (83.7%)

  Female

16 (12.6%)

8 (10.3%)

8 (16.3%)

Race, number (%)

  Chinese

100 (78.7%)

66 (84.6%)

34 (69.4%)

  Malay

8 (6.3%)

5 (6.4%)

3 (6.1%)

  Indian

7 (5.5%)

3 (3.9%)

4 (8.2%)

  Others

12 (9.5%)

4 (5.1%)

8 (16.3%)

Pre-operative characteristics

  LogMAR BCVA, mean (SD)

1.22 (1.0)

1.12 (0.8)

1.37 (1.3)

  >1.0

62 (48.8%)

39 (50%)

23 (47.0%)

  0.3 < x < = 1.0

37 (29.2%)

24 (30.8%)

13 (26.5%)

  <= 0.3

28 (22.0%)

15 (19.2%)

13 (26.5%)

Pre-op refractive status, number (%)

  Highly myopic (SE < = −6.0D)

34 (26.8%)

19 (24.4%)

15 (30.6%)

  Myopic (SE > −0.5, but < −6.0D)

82 (64.6%)

54 (69.2%)

28 (57.1%)

  Non-myopic

11 (8.7%)

5 (3.9%)

6 (12.3%)

Lens status, number (%)

  Phakic

86 (67.7%)

53 (68.0%)

33 (67.4%)

  Pseudophakic

30 (23.6%)

16 (20.5%)

14 (28.6%)

  Aphakic

11 (8.7%)

9 (11.5%)

2 (4.1%)

Extent of GRT, number (%)

  90 to <120 degrees

66 (52.0%)

38 (48.7%)

28 (57.1%)

  120 to <150 degrees

24 (18.9%)

15 (19.2%)

9 (18.4%)

  150 to <180 degrees

28 (22.0%)

16 (20.5%)

12 (24.5%)

  180 degrees or more

9 (7.1%)

9 (11.5%)

0 (0%)

Tears, number (%)

  Single

86 (67.7%)

60 (76.9%)

26 (53.1%)

  Multiple

41 (32.3%)

18 (23.1%)

23 (46.9%)

Macula status, number (%)

  Attached

53 (41.7%)

30 (38.5%)

23 (46.9%)

  Partially Detached

11 (8.7%)

5 (6.4%)

6 (12.2%)

  Totally Detached

63 (49.6%)

43 (55.1%)

20 (40.8%)

Presence of primary PVR, number (%)

  Yes

17 (13.4%)

11 (14.1%)

6 (12.2%)

  No

110 (86.6%)

67 (85.9%)

43 (87.8%)

  1. *A two-sample t-test or Fisher’s exact test was conducted for continuous and categorical variables respectively between Groups A and B.