M-incision extraction of cataract combined with intraocular lens implantation and trabeculectomy

Objective To evaluate the therapeutic effects and safety of the combined M-incision cataract extraction, intraocular lens implantation and trabeculectomy (triple procedure) and compare the outcomes of the operation with two different small incision , M shape and phacoemulsification.Methods Forty patients (43 eyes) with coexisting glaucoma and cataract underwent triple procedure.M-small incision approach was performed on 25 eyes, and phacoemulsification approach, on 18 eyes.The mean follow-up time was 15～37 months.Results The mean preoperative intraocular pressure (IOP) in M group was (25.3±9.8)mmHg (1 mmHg=0.133 kPa),phacoemulsification group was (25.7 ±9.5)mmHg.The mean postoperative IOP in the M group was (15.53±5.3) mmHg,phacoemulsification group was (15.01±3.2) mmHg.After operation,the visual acuities of the two groups were ≥0.5 in 15 eyes (60%) and in 12 eyes (66%) respectively,The mean magnitude of astigmatism was( 0.89±0.31)D in M group,and (0.78±0.5) D in phacoemulisification group.There were no statistical differences for the postoperative outcomes of IOP,visual acuity, astigmatism and filtering bleb between two groups (P0.05).Conclusion M small-incision combined with phacoemulsification triple operation is effective in treating patients with glaucoma complicated with cataract,improving the visual acuity rapidly and reducing intraocular pressure,with less postoperative complications.