To evaluate the efficacy of combined glaucoma surgery, 42 glaucomatous patients were randomly divided into two groups: deep sclerectomy with implant (DS) alone was performed in 21 patients, and combined deep sclerectomy and phacoemulsification (PDS) was performed in the other 21 patients. Follow-up was carried out at regular intervals for 12 months. A comparative study on intraocular pressure (IOP) was designed. Although further study is needed, PDS appears to have better postoperative long-term results in IOP control than DS alone.
Photorefractive keratectomy (PRK) with a 193-nm excimer laser has been shown not to destroy endothelial cells in vivo. However, this laser could damage endo-thelial cell metabolism, and result in damage over a longer term. In this paper, a comparison between the number and shape of corneal endothelial cells has been performed in 25 patients before and 6 months after PRK. These patients underwent treatment with myopic correction ranging from 2.5 to 17 dpt and with an estimated corneal thinning ranging from 25 to 170 µm. No significant changes in the number (p = 0.167) and shape (p = 0.075) of endothelial cells have been found. These results show that there are no long-term damages after PRK even in severely myopic eyes.
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