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To examine the variations in intraocular pressure (IOP) occuring upon changes in clinical premises' relocation in patients with primary open angle glaucoma (POAG).Two hundred and twenty-four eyes of 224 patients with POAG were examined. We compared the IOP values measured with an identical noncontact tonometer (NCT) (CT-90A) obtained on May 2014 (IOP514) before the clinical premises' relocation, and those obtained on June (IOP614), July or August (IOP7814) 2014 after relocation. To examine the systematic errors of the NCT, Bland-Altman plot analysis was applied.IOP614 (12.2 ± 2.7 mmHg) and IOP7814 (12.1 ± 2.7mmHg) were significantly lower than IOP514 (13.1 ± 2.9 mmHg) (p0.001). IOP614 was also lower than IOP514, both in the β-blocker and prostaglandin analogue groups. When these values were adjusted using those obtained one year before the clinical relocation to take seasonal variations into consideration, IOP after relocation was lower than IOP before relocation (p0.001). Proportional bias was not detected (r = 0.082; p = 0.999).There was a variation in IOP determined by the identical noncontact tonometer between before and after the clinical premises' relocation in patients with POAG.

Background: We report a patient who was diagnosed as having steroid-induced glaucoma after radial keratotomy (RK) and who suffered from severe visual field defect. Case: A 29-year-old man underwent RK for both eyes. After the operation, he was treated for six months with topical medication including 0.1% and 0.01% betamethasone without an intraocular pressure (IOP) measurement. When he consulted an ophthalmologist, his IOP was 43 mmHg in the right eye and 51 mmHg in the left eye. At our initial examination, his IOP was 8 mmHg in the right eye and 10 mmHg in the left eye. He was taking 750 mg acetazolamide peroral, 0.5% timolol maleate, and latanoprost eyedrops. There were 16 RK incisions on the cornea and we found severe glaucomatous visual field loss. Finally we performed trabeculotomy in both eyes for IOP control with conservative therapy. Conclusion: As keratorefractive surgery becomes popular, we must be alert for problems, such as steroid-induced glaucoma, and the change in refraction following the change in IOP. Nippon Ganka Gakkai Zasshi

Ultrasound biomicroscopy(UBM) was performed on filtering blebs with laser treatment including laser gonioplasty(GP), laser iridotomy(LI), and YAG laser trabeculopuncture(YLT) after non-penetrating trabeculectomy(NPT). The filtering blebs were grouped into four types, L, H, E and F, and the spaces under the scleral flap were classified into three. La, S, and N.In case 1, an F type, an S bleb was not changed despite laser treatment 9 months after NPT. In case 2, YLT was performed twice to release the incarcerated iris. The filtering bleb was changed to the L type, an La bleb. In case 3, an F type, an S bleb was turned into an H type after GP, LI, and YLT. In case 4, GP effectively released peripheral anterior synechia formation and the filtering bleb was kept as an L type, La.Appropriate laser treatment may be effective in turning a flattened and localized bleb into a good filtering bleb.

Background We report a patient with persistent hyperplastic primary vitreous(PHPV) who presented with acute angle-closure glaucoma in his adult life. Case A 30-year-old man had an attack of acute angle-closure glaucoma associated with retrolenticular fibrous tissue, atrophic retina, and elongated cilliary process in his right eye. Result Ultrasound biomicroscopy(UBM) study showed iris bowing, shallow anterior chamber, and elongated cilliary body which were being pulled by the retrolenticular mass. The posterior chamber was normal. Conclusion Although the mechanisms of secondary angle-closure glaucoma in PHPV are complicated, we suspected pupillary block resulting from constriction by the retrolenticular mass in this case.