Clinical experience of phacoemulsification for cataract patients with angle-closure glaucoma in 29 cases

AIM: To observe the clinical effect of phacoemulsification with foldable intraocular lens implantation on cataract with angle-closure glaucoma. <p>METHODS: Twenty-nine cases(29 eyes)of angle-closure glaucoma with cataract underwent phacoemulsification with foldable intraocular lens implantation, and the data of visual acuity, intraocular pressure, gonioscopy and complications after operation were statistically analyzed.<p>RESULTS:Postoperatively, 28 eyes(96.5%)visual acuity were improved. Intraocular pressure of 25 eyes(86.2%)were maintained at a normal level without any IOP lowering drug, intraocular pressure of 3 eyes(10.3%)were controlled by IOP lowering eye drops, intraocular pressure of 1 eye(3.5%)returned to normal by trabeculectomy. The chamber depth of 29 eyes was increased. 8 eyes were suffered from mild corneal edema, and returned to normal after treatment. <p>CONCLUSION: Characterized by decreasing intraocular pressure, opening anterior chamber, and raising visual acuity, phacoemulsification with foldable intraocular lens implantation is a good operative therapy for primary angle-closure glaucoma complicated with cataract with preoperative goniosynechia closed ≤270°

Quantum state transfer through a spin chain in a multi-excitation subspace

We investigate the quality of quantum state transfer through a uniformly coupled antiferromagnetic spin chain in a multi-excitation subspace. The fidelity of state transfer using multi-excitation channels is found to compare well with communication protocols based on the ground state of a spin chain with ferromagnetic interactions. Our numerical results support the conjecture that the fidelity of state transfer through a multi-excitation subspace only depends on the number of initial excitations present in the chain and is independent of the excitation ordering. Based on these results, we describe a communication scheme which requires little effort for preparation.Comment: 5 pages, 4 figure