Table 1 Study procedures

Proliferative diabetic retinopathy (either vitrectomy or combined surgery—phacoemulsification, implant of intraocular lens and vitrectomy)

86

142

SO 1000cs-46

SO 5000cs-48

SF6 gas-32

C3F8 gas-1

Air-4

BSS-11

20G-93

23G-49

Regmatogenus retinal detachment (either vitrectomy or combined surgery—phacoemulsification, intraocular lens implant and vitrectomy or lensectomy and vitrectomy)

35

36

SO 1000cs-8

SO 5000cs-6

SF6 gas-14

C3F8 gas-5

Heavy silicon oil-3

20G-15

23G-20

Macular hole (either vitrectomy or combined surgery—phacoemulsification, intraocular lens implant and vitrectomy)

28

28

SF6 gas-28

20G-11

23G-17

Epiretinal membrane (either vitrectomy or combined surgery—phacoemulsification, intraocular lens implant and vitrectomy)

18

19

Air-8

BSS-6

SF6-5

20G-12

23G-7

Silicon extraction

15

15

BSS-12

Air-3

Silicon oil 5000cs-1

20 G-15

Nucleus luxation

11

11

BSS-9

Air-2

20 G-8

23 G-3

Luxation of intraocular lens

9

9

BSS-7

Air-1

SO 5000cs-1

20G-8

23G-1

Penetrating trauma

Intraocular foreign body (4)

6

6

SO 5000cs-3

SF6 gas-1

C3F8 gas-1

Air-1

20G 20

Combined surgery (cataract phacoemulsification + vitrectomy + Ahmed valve implantation)

3

5

SO 1000cs-2

SO5000cs-1

BSS-2

20G-4

23G-1

Macular detachment associated to optic pit

1

1

C3F8 gas-1

23G

Vitreous biopsy

1

1

BSS-1

23G

Giant retinal tear

1

1

SO1000cs

20G