Biomedical subjects

N Nik

Publications and source records attributed to N Nik.

3 recordsLinked to original sources

PubMed1990

Tear flow analysis through the upper and lower systems.

Using quantitative lacrimal scintillography, tear flow in the normal state was analyzed in 11 asymptomatic volunteers. The results were compared to states with the superior punctum occluded, and to those with the inferior punctum occluded. No significant difference in tear flow between the superior and inferior canaliculi was appreciated (P less than 0.05). Furthermore, no significant difference was noted in overall basal tear flow when one canaliculus was blocked compared to the patent system (P less than 0.05). This implies increased tear flow through the patent canaliculus when the opposite one is blocked. The clinical implications of these results are important in canaliculus repair after injury.

Adult↗

PubMed1984

The role of the browplasty rotational flap in lower eyelid reconstruction.

The excision of a basal cell carcinoma of the lower eyelid often leaves a large defect. The rotational browplasty flap with a full thickness buccal mucous membrane graft permits satisfactory reconstruction when standard procedures have failed or are not advisable. It is especially useful in recurrent lid tumors where surgery and/or radiotherapy have been unsuccessful in controlling the tumor. Although the graft may produce a thicker lower lid, and the brow may be elevated because of the graft, it allows the surgeon to repair a large lower eyelid defect when other methods cannot be used.

Aged↗

PubMed1984

Lacrimal sac identification for dacryocystorhinostomy: the role of sodium hyaluronate.

Sodium hyaluronate in a 1% solution (Healon) mixed with a few drops of 2% fluorescein has been found to be useful in exposing the lumen of the lacrimal sac at the time of dacryocystorhinostomy (DCR) surgery. Injection of the solution into the sac facilitates proper opening and allows accurate identification of the edges of the sac flaps. This technique is especially valuable when the sac is small or when previous DCR surgery was unsuccessful.

Dacryocystorhinostomy↗