Eye Specialists | Lasik in Optimax

Optimax Eye Specialist Centre (HQ)
Unit 2-2-1, Bangunan AHP,
Jalan Tun Mohd Fuad 3,
Taman Tun Dr. Ismail,
60000 Kuala Lumpur.
Tel : 603-7722 3177




Eye Specialist Dr. Stephen Chung Soon Hee
Eye Specialist Dr. Chuah Kay Leong
Ophthalmologist Dr. Lee Seow Yeang
Eye Specialist Dr. Norazlina Bachik Ng
Eye Specialist Dr. Yip Kong Yake
Eye Specialist Dr. Nor Zainura Zainal
Eye Specialist Dr. Yen Siew Siang
Eye Specialist Dr. Suraiya Mohamad Shafie
Eye Specialist Prof. Dr. Chua Chung Nen
Eye Specialist Dr. Sim Pek Eng


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Updated October 2, 2026 Semaglutide and tirzepatide can produce substantial weight loss, but an important question has emerged alongside the popularity of GLP-1-based obesity medicines: How much of the weight lost is fat, and how much is lean mass? The question is more complicated than it first appears. Studies of semaglutide and tirzepatide show that both drugs reduce fat mass and also reduce lean mass during weight loss. However, lean mass is not synonymous with skeletal muscle , and results from separate trials cannot be interpreted as a direct head-to-head comparison of muscle preservation. A 2026 systematic review and meta-analysis of 20 randomized controlled trials involving 15,782 participants estimated that lean mass accounted for approximately 35.2% of weight lost with semaglutide and 25.4% with tirzepatide . However, the authors did not establish that tirzepatide preserves functional skeletal muscle better than semaglutide. The analysis also found that ad...
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GLP-1 & Obesity Medicine Guide • Updated October 2026 Semaglutide, tirzepatide and orforglipron represent three important stages in the evolution of incretin-based medicine: an established injectable GLP-1 receptor agonist, a dual GIP/GLP-1 agonist with greater average weight loss, and a next-generation oral GLP-1 receptor agonist designed to deliver GLP-1 therapy without an injection. But the phrase “best GLP-1 drug” can be misleading. These medicines do not have identical mechanisms, routes of administration, dose scales, indications or clinical-outcome evidence. And the headline weight-loss percentages come from different trials, so they cannot simply be placed in one league table as though the three drugs were tested against each other in a single randomized trial. The current evidence nevertheless gives us a useful framework. Tirzepatide currently has the strongest direct evidence for greater weight loss than semaglutide. Semaglutide remains a benchmark therapy w...
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Updated September 2026 GLP-1-based medicines have changed the treatment of obesity by making substantial, sustained weight loss possible for many people. But as the scale goes down, an important question follows: How much of the weight being lost is fat, and how much is lean tissue? This matters because long-term health is not determined by body weight alone. Preserving skeletal muscle, strength, physical function and nutritional adequacy is particularly important during substantial weight loss. The good news is that current evidence does not support the idea that GLP-1 therapies simply “eat away” muscle. Most weight lost with semaglutide and tirzepatide is fat mass. At the same time, measurable reductions in lean mass can occur, particularly during large or rapid weight loss. The most defensible strategy is therefore not to avoid effective obesity treatment, but to improve the quality of weight loss with adequate protein, progressive re...
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