Aim: To describe the use of a new speculated cryoprobe in treatment of conjunc tival neoplasia. Methods: A new cryoprobe design was submitted to Mira, Inc resu lting in new hand held probes capable of producing homoge...Aim: To describe the use of a new speculated cryoprobe in treatment of conjunc tival neoplasia. Methods: A new cryoprobe design was submitted to Mira, Inc resu lting in new hand held probes capable of producing homogeneous freezing over lar ge surface areas. The active surface of the small, medium, and large spatulated probes are 8.5 mm2, 25.2 mm2, and 70 mm2. End freezing reduces the possibility o f inadvertent freezing of adjacent tissues (outside the targeted zone). In this series, the probes were employed to treat patients with squamous and melanocytic conjunctival neoplasia. Results: 12 consecutive patients with malignant conjunc tival neoplasia were treated with these new cryotherapy probes. Techniques of pr obe construction and clinical use are described. Cryoburns of the cornea, sclera , and conjunctiva were formed and recorded by digital photography. Ophthalmic ex aminations before and after surgery demonstrated that no acute intraocular or ad nexal complications occurred. No loss of visual acuity could be attributed to th is use of the cryoprobes. Conclusion: “Finger-tip”cryoprobes were used to tre at malignant conjunctival neoplasia (squamous and melanocytic). Probe design all owed for uniform freezing over large surface areas. This cryoprobe design appear s to be ideal for treatment of conjunctival tumours.展开更多
Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was intr...Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was introduced under sodium hya luronate 1%and through a 1 mm incision. Aspiration (600 mm Hg) cutting (300 cpm ) was performed to obtain specimens for cytology and histopathology. Results: Di agnostic material was obtained in nine of 10 (90%) cases. Diagnoses included ir is naevus, iris stroma, malignant melanoma, melanocytoma, epithelial inclusion c yst, and sarcoid granuloma. All corneal wounds were self sealing. One patient de veloped a transient postoperative increase in intraocular pressure. Within the f ollow up of this study, no patients suffered intraocular haemorrhage, infection, cataract or vision loss. Conclusion: The Finger iridectomy technique was a mini mally invasive and very effective biopsy technique. Aspiration cutting yielded r elatively large pieces of tissue (and cells) used for cytopathological and histo pathological evaluation. Small incision surgery allowed for rapid rehabilitation and no significant complications.展开更多
Purpose:To describe a minimally invasive method to create a full-thickness surgical iridectomy.Design:An interventional case series.Methods:Surgical iridectomies were performed through a 1 mm clear corneal incision.Th...Purpose:To describe a minimally invasive method to create a full-thickness surgical iridectomy.Design:An interventional case series.Methods:Surgical iridectomies were performed through a 1 mm clear corneal incision.The anterior chamber was prepared with acetylcholine chloride 10 mg/ml and sodium hyaluronate 1%.A 25-gauge aspiration-cutter “ probe" was introduced through the corneal incision such that the aspiration portal was occluded by the iris stroma.Then aspiration(600 mm/Hg)cutting(300 cpm)was used to create a surgical iridotomy in 2 cases.Then the probe was removed.Results:Full-thickness iridotomies were created.None of the patients were noted to have a secondary increase in intraocular pressure,hyphema,infection,cataract or vision loss.The clear-corneal wounds were self-sealing.Conclusions:Small incision surgical iridectomy can be minimally invasive and effective.Use of a 25-gauge aspiration-cutting probe allowed for small incision surgery,rapid rehabilitation and no significant complications.展开更多
] PURPOSE: To report the use of a new cryotherapy probe to induce proptosis duri ng enucleation surgery. DESIGN: Interventional case report. METHODS: Two patient s with uveal melanoma and secondary glaucoma were treat...] PURPOSE: To report the use of a new cryotherapy probe to induce proptosis duri ng enucleation surgery. DESIGN: Interventional case report. METHODS: Two patient s with uveal melanoma and secondary glaucoma were treated by enucleation. A larg e surface area (70 mm2), spatulated, end-freezing cryotherapy probe (“Finger- tip”probes, MIRA, Inc.) was used to induce proptosis during optic nerve transse ction. RESULTS: This new probe offers homogeneous freezing over a relatively lar ge surface area. This new cryoprobe was used to create a large cryo-adhesion on the cornea, for an excellent purchase of the eye during enucleation surgery. Us ing this adhesion, the eye was lifted, enabling transsection of the optic nerve. CONCLUSIONS: This report includes photographs of the cryoprobe, the corneal cry o-adhesion, and describes its use for traction during enucleation surgery.展开更多
Purpose: This study was conducted to investigate a case of reactive lymphoid hyperplasia following laser assisted in situ keratomileusis (LASIK). Methods: A 31- year-old man who underwent LASIK presented 1 month later...Purpose: This study was conducted to investigate a case of reactive lymphoid hyperplasia following laser assisted in situ keratomileusis (LASIK). Methods: A 31- year-old man who underwent LASIK presented 1 month later with a fleshy conjunctival (plical) tumor in the left eye. An excision biopsy of the tumor was performed. Results: Histopathology of the excised tumor revealed reactive lymphoid hyperplasia. Discussion: Conjunctival lymphomas can masquerade as chronic conjunctivitis and can be preceded by reactive lymphoid hyperplasia. It is important to identify and differentiate these tumors. This report describes the unusual occurrence of a lymphoid conjunctival tumor after LASIK eye surgery.展开更多
文摘Aim: To describe the use of a new speculated cryoprobe in treatment of conjunc tival neoplasia. Methods: A new cryoprobe design was submitted to Mira, Inc resu lting in new hand held probes capable of producing homogeneous freezing over lar ge surface areas. The active surface of the small, medium, and large spatulated probes are 8.5 mm2, 25.2 mm2, and 70 mm2. End freezing reduces the possibility o f inadvertent freezing of adjacent tissues (outside the targeted zone). In this series, the probes were employed to treat patients with squamous and melanocytic conjunctival neoplasia. Results: 12 consecutive patients with malignant conjunc tival neoplasia were treated with these new cryotherapy probes. Techniques of pr obe construction and clinical use are described. Cryoburns of the cornea, sclera , and conjunctiva were formed and recorded by digital photography. Ophthalmic ex aminations before and after surgery demonstrated that no acute intraocular or ad nexal complications occurred. No loss of visual acuity could be attributed to th is use of the cryoprobes. Conclusion: “Finger-tip”cryoprobes were used to tre at malignant conjunctival neoplasia (squamous and melanocytic). Probe design all owed for uniform freezing over large surface areas. This cryoprobe design appear s to be ideal for treatment of conjunctival tumours.
文摘Aims: To develop a minimally invasive, maximally effective method to biopsy an terior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was us ed to biopsy anterior segment tumours. The probe was introduced under sodium hya luronate 1%and through a 1 mm incision. Aspiration (600 mm Hg) cutting (300 cpm ) was performed to obtain specimens for cytology and histopathology. Results: Di agnostic material was obtained in nine of 10 (90%) cases. Diagnoses included ir is naevus, iris stroma, malignant melanoma, melanocytoma, epithelial inclusion c yst, and sarcoid granuloma. All corneal wounds were self sealing. One patient de veloped a transient postoperative increase in intraocular pressure. Within the f ollow up of this study, no patients suffered intraocular haemorrhage, infection, cataract or vision loss. Conclusion: The Finger iridectomy technique was a mini mally invasive and very effective biopsy technique. Aspiration cutting yielded r elatively large pieces of tissue (and cells) used for cytopathological and histo pathological evaluation. Small incision surgery allowed for rapid rehabilitation and no significant complications.
文摘Purpose:To describe a minimally invasive method to create a full-thickness surgical iridectomy.Design:An interventional case series.Methods:Surgical iridectomies were performed through a 1 mm clear corneal incision.The anterior chamber was prepared with acetylcholine chloride 10 mg/ml and sodium hyaluronate 1%.A 25-gauge aspiration-cutter “ probe" was introduced through the corneal incision such that the aspiration portal was occluded by the iris stroma.Then aspiration(600 mm/Hg)cutting(300 cpm)was used to create a surgical iridotomy in 2 cases.Then the probe was removed.Results:Full-thickness iridotomies were created.None of the patients were noted to have a secondary increase in intraocular pressure,hyphema,infection,cataract or vision loss.The clear-corneal wounds were self-sealing.Conclusions:Small incision surgical iridectomy can be minimally invasive and effective.Use of a 25-gauge aspiration-cutting probe allowed for small incision surgery,rapid rehabilitation and no significant complications.
文摘] PURPOSE: To report the use of a new cryotherapy probe to induce proptosis duri ng enucleation surgery. DESIGN: Interventional case report. METHODS: Two patient s with uveal melanoma and secondary glaucoma were treated by enucleation. A larg e surface area (70 mm2), spatulated, end-freezing cryotherapy probe (“Finger- tip”probes, MIRA, Inc.) was used to induce proptosis during optic nerve transse ction. RESULTS: This new probe offers homogeneous freezing over a relatively lar ge surface area. This new cryoprobe was used to create a large cryo-adhesion on the cornea, for an excellent purchase of the eye during enucleation surgery. Us ing this adhesion, the eye was lifted, enabling transsection of the optic nerve. CONCLUSIONS: This report includes photographs of the cryoprobe, the corneal cry o-adhesion, and describes its use for traction during enucleation surgery.
文摘Purpose: This study was conducted to investigate a case of reactive lymphoid hyperplasia following laser assisted in situ keratomileusis (LASIK). Methods: A 31- year-old man who underwent LASIK presented 1 month later with a fleshy conjunctival (plical) tumor in the left eye. An excision biopsy of the tumor was performed. Results: Histopathology of the excised tumor revealed reactive lymphoid hyperplasia. Discussion: Conjunctival lymphomas can masquerade as chronic conjunctivitis and can be preceded by reactive lymphoid hyperplasia. It is important to identify and differentiate these tumors. This report describes the unusual occurrence of a lymphoid conjunctival tumor after LASIK eye surgery.
