Cataract surgery for those with glaucoma requires particular care. Any previous glaucoma surgery can make surgery more challenging, and therefore often a glaucoma specialist will be performing the procedure - sometimes cataract surgery can be combined with other surgeries to lower eye pressure optimally, and this is discussed prior to surgery. Often the decision making process here is complex and a very individual decision. Cataract surgery can be combined with a gentle laser treatment, and also with trabeculectomy to offer optimal IOP control. Also, selective laser trabeculoplasty can be performed after cataract surgery if eye pressure is now low enough. New treatments available such as the Glaukos iStent are also likely to be offered at the time of cataract surgery giving a further protective lowering of pressure in some patients.