عطیه مهدوی رفیع

There are a few options for lowering   intraocular pressure (IOP): medical treatment, laser therapy, and surgery. Although SLT is a safe treatment of glaucoma, some parameters may be affected by the SLT. The purpose of this study was to investigate the effects of SLT on anterior segment parameters and macular thickness in patients with primary open-angle glaucoma (POAG) and ocular hypertension (OHT).

56 eyes with newly diagnosed or uncontrolled POAG and OHT were enrolled. All the patients treated with SLT: 360˚. IOP, anterior segment parameters, and macular thickness in 5 zones were measured before and 1, 3, 6 months after SLT, and data were compared between both groups at different times.

IOP decreased significantly in both groups (P<0.05). There was an increase in macular thickness in the first and 3rd months after SLT. On the 6th month after SLT, all the measures except the temporal zone in the POAG group were back to pre-SLT measures. The central corneal thickness also increased in the first month but decreased in the 3rd and 6th months after SLT. Anterior chamber depth and volume also significantly decreased in both groups (p-value: (P<0.05) Anterior chamber angle also increased mild but not significant during the follow-up (P>0.05).

Although the selective laser trabeculoplasty is safe it may affect some parameters of the anterior segmen.

Hidrocystoma are benign adnexal cystic lesion originating from sweat glands (eccrine or apocrine) which are often observed in the head and neck. Periocular hidrocystomas are relatively uncommon which can occur as single or multiple lesions. There is no gender or race predisposition for the prevalence of hydrocystoma. Spontaneous resolution is rare, especially in large cysts, and definite treatment usually requires surgery and complete removal of the cyst wall.

Here we present the case of a 44-year-old male admitted to our clinic with mobile mass in lower eyelid and conjunctival cystic lesion which had increased in size over the previous 6 months. All other ophthalmologic findings were within normal range in both eyes. The mass was exposed by blunt dissection through the lower palpebral conjunctiva. Excision was continued by careful blunt dissection in order to avoid capsule rupture and the cystic mass was removed from the surrounding tissues. The dimensions of the cyst was 8x12x10 mm macroscopically. Histological incision revealed a benign cystic mass lined with a single layer of columnar epithelium which demonstrated eccrine hidrocystoma.

Although eccrine hidrocystoma lesions rarely involve the orbit, they should be considered in differential diagnosis of cystic swelling in periorbital region. If the lesion is completely removed without rupturing capsule (such as the patient in this case study), the recurrence will be extremely rare.