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Eom Y, Lee YJ, Song JS, Kim HM, Nam DH. Effect of surgical microscope and illuminated chopper on anterior chamber temperature. BMC Ophthalmol 2023; 23:29. [PMID: 36690966 PMCID: PMC9869552 DOI: 10.1186/s12886-023-02784-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND To evaluate the effect of the light intensity of the surgical microscope and illuminated chopper on the anterior chamber temperature. STUDY DESIGN Experimental study. METHODS A model eye (Kitaro WetLab System; FCI Ophthalmics, Pembroke, MA, USA) was used in this experimental study. The illuminance of a surgical microscope (Leica M300; Leica Microsystems, Wetzlar, Germany) and illuminated chopper (iChopper NAM-25 GB; Oculight, Korea) with a light source (iVision; Oculight) was measured using an illuminometer. In addition, the temperature in the anterior chamber of the model eye filled with balanced salt solution when using the surgical microscope with a light intensity from level 1 to level 6 and the illuminated chopper at 99% light intensity was measured for 10 min. RESULTS The anterior chamber temperature was increased by 0.2, 0.5, 1.0, and 1.4 ℃ when using the surgical microscope at level 3 (10050 lux), 4 (16490 lux), 5 (24900 lux), and 6 (32500 lux), respectively, for 10 min. The illuminated chopper at 99% light intensity (14893 lux) positioned in the anterior chamber increased the anterior chamber temperature by 0.2° C after 10 min, which was equal to the increase in the temperature caused by the surgical microscope at level 3. CONCLUSION The photothermal effect of the illuminated chopper directly positioned in the anterior chamber appeared to be similar to that of a microscope with similar illuminance. Therefore, the illuminated chopper is safe in terms of anterior chamber temperature changes in cataract surgery.
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Affiliation(s)
- Youngsub Eom
- grid.222754.40000 0001 0840 2678Department of Ophthalmology, Ansan Hospital, Korea University College of Medicine, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do 15355 Republic of Korea ,grid.222754.40000 0001 0840 2678Department of Ophthalmology, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea ,grid.189967.80000 0001 0941 6502Department of Ophthalmology, Emory University School of Medicine, Emory Clinic Building B, 1365B Clifton Road, Atlanta, GA 30322 USA
| | - Young Joo Lee
- grid.222754.40000 0001 0840 2678Department of Ophthalmology, Ansan Hospital, Korea University College of Medicine, 123, Jeokgeum-Ro, Danwon-Gu, Ansan-Si, Gyeonggi-Do 15355 Republic of Korea ,grid.222754.40000 0001 0840 2678Department of Ophthalmology, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Jong Suk Song
- grid.222754.40000 0001 0840 2678Department of Ophthalmology, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Hyo Myung Kim
- grid.222754.40000 0001 0840 2678Department of Ophthalmology, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Dong Heun Nam
- grid.411652.5Department of Ophthalmology, Gil Medical Center, College of Medicine, Gachon University Gil Hospital, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, 21565 Republic of Korea
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